10021300120 has 32 divisors (see below), whose sum is σ = 24282382320. Its totient is φ = 3700172160.

The previous prime is 10021300111. The next prime is 10021300127. The reversal of 10021300120 is 2100312001.

It is a super-2 number, since 2×10021300120² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10021300097 and 10021300106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021300127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9635346 + ... + 9636385.

Almost surely, 2^10021300120 is an apocalyptic number.

10021300120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021300120 is an abundant number, since it is smaller than the sum of its proper divisors (14261082200).

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

10021300120 is a wasteful number, since it uses less digits than its factorization.

10021300120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19271755 (or 19271751 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 10021300120 its reverse (2100312001), we get a palindrome (12121612121).

The spelling of 10021300120 in words is "ten billion, twenty-one million, three hundred thousand, one hundred twenty".