1211414121 has 6 divisors (see below), whose sum is σ = 1749820410. Its totient is φ = 807609408.

The previous prime is 1211414111. The next prime is 1211414153. The reversal of 1211414121 is 1214141121.

1211414121 is a `hidden beast` number, since 1 + 211 + 41 + 412 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1205825625 + 5588496 = 34725^2 + 2364^2 .

It is not a de Polignac number, because 1211414121 - 2⁷ = 1211413993 is a prime.

It is a super-3 number, since 3×1211414121³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211414094 and 1211414103.

It is not an unprimeable number, because it can be changed into a prime (1211414111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67300776 + ... + 67300793.

It is an arithmetic number, because the mean of its divisors is an integer number (291636735).

Almost surely, 2^1211414121 is an apocalyptic number.

It is an amenable number.

1211414121 is a deficient number, since it is larger than the sum of its proper divisors (538406289).

1211414121 is a wasteful number, since it uses less digits than its factorization.

1211414121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134601575 (or 134601572 counting only the distinct ones).

The product of its digits is 64, while the sum is 18.

The square root of 1211414121 is about 34805.3748866465. The cubic root of 1211414121 is about 1066.0171965048.

Adding to 1211414121 its reverse (1214141121), we get a palindrome (2425555242).

The spelling of 1211414121 in words is "one billion, two hundred eleven million, four hundred fourteen thousand, one hundred twenty-one".