1010021100120 has 96 divisors (see below), whose sum is σ = 3294419328720. Its totient is φ = 268366590720.

The previous prime is 1010021100103. The next prime is 1010021100161. The reversal of 1010021100120 is 210011200101.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4964566 + ... + 5164005.

Almost surely, 2^{1010021100120} is an apocalyptic number.

1010021100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010021100120 is an abundant number, since it is smaller than the sum of its proper divisors (2284398228600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1010021100120 is a wasteful number, since it uses less digits than its factorization.

1010021100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10128865 (or 10128858 counting only the distinct ones).

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

Adding to 1010021100120 its reverse (210011200101), we get a palindrome (1220032300221).

The spelling of 1010021100120 in words is "one trillion, ten billion, twenty-one million, one hundred thousand, one hundred twenty".