1120010121 has 24 divisors (see below), whose sum is σ = 1658026656. Its totient is φ = 728159040.

The previous prime is 1120010107. The next prime is 1120010137. The reversal of 1120010121 is 1210100211.

It is a happy number.

It is not a de Polignac number, because 1120010121 - 2⁷ = 1120009993 is a prime.

It is a super-2 number, since 2×1120010121² = 2508845342284869282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1120014121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 292606 + ... + 296408.

It is an arithmetic number, because the mean of its divisors is an integer number (69084444).

Almost surely, 2^1120010121 is an apocalyptic number.

It is an amenable number.

1120010121 is a deficient number, since it is larger than the sum of its proper divisors (538016535).

1120010121 is a wasteful number, since it uses less digits than its factorization.

1120010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4613 (or 4610 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1120010121 is about 33466.5522723809. The cubic root of 1120010121 is about 1038.5019485294.

Adding to 1120010121 its reverse (1210100211), we get a palindrome (2330110332).

It can be divided in two parts, 11200 and 10121, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 1120010121 in words is "one billion, one hundred twenty million, ten thousand, one hundred twenty-one".