1012110221 has 16 divisors (see below), whose sum is σ = 1093055040. Its totient is φ = 934053120.

The previous prime is 1012110191. The next prime is 1012110233. The reversal of 1012110221 is 1220112101.

It is a cyclic number.

It is not a de Polignac number, because 1012110221 - 2²² = 1007915917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012110251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352331 + ... + 355191.

It is an arithmetic number, because the mean of its divisors is an integer number (68315940).

Almost surely, 2^1012110221 is an apocalyptic number.

It is an amenable number.

1012110221 is a deficient number, since it is larger than the sum of its proper divisors (80944819).

1012110221 is a wasteful number, since it uses less digits than its factorization.

1012110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3356.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1012110221 is about 31813.6797777308. The cubic root of 1012110221 is about 1004.0205538165.

Adding to 1012110221 its reverse (1220112101), we get a palindrome (2232222322).

The spelling of 1012110221 in words is "one billion, twelve million, one hundred ten thousand, two hundred twenty-one".