1011412121 has 4 divisors (see below), whose sum is σ = 1014310500. Its totient is φ = 1008513744.

The previous prime is 1011412069. The next prime is 1011412139. The reversal of 1011412121 is 1212141101.

1011412121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 927872521 + 83539600 = 30461^2 + 9140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011412121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011412096 and 1011412105.

It is not an unprimeable number, because it can be changed into a prime (1011412141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1448666 + ... + 1449363.

It is an arithmetic number, because the mean of its divisors is an integer number (253577625).

Almost surely, 2^1011412121 is an apocalyptic number.

It is an amenable number.

1011412121 is a deficient number, since it is larger than the sum of its proper divisors (2898379).

1011412121 is an equidigital number, since it uses as much as digits as its factorization.

1011412121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898378.

The product of its (nonzero) digits is 16, while the sum is 14.

The square root of 1011412121 is about 31802.7061898826. The cubic root of 1011412121 is about 1003.7896606636.

Adding to 1011412121 its reverse (1212141101), we get a palindrome (2223553222).

The spelling of 1011412121 in words is "one billion, eleven million, four hundred twelve thousand, one hundred twenty-one".