210020011202120 has 64 divisors (see below), whose sum is σ = 540062647326720. Its totient is φ = 72005368990464.

The previous prime is 210020011202107. The next prime is 210020011202123. The reversal of 210020011202120 is 21202110020012.

It is a super-2 number, since 2×210020011202120² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 210020011202095 and 210020011202104.

It is not an unprimeable number, because it can be changed into a prime (210020011202123) 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, 5809049 + ... + 21302231.

It is an arithmetic number, because the mean of its divisors is an integer number (8438478864480).

Almost surely, 2^{210020011202120} is an apocalyptic number.

210020011202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210020011202120 is an abundant number, since it is smaller than the sum of its proper divisors (330042636124600).

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

210020011202120 is a wasteful number, since it uses less digits than its factorization.

210020011202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15541614 (or 15541610 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210020011202120 its reverse (21202110020012), we get a palindrome (231222121222132).

The spelling of 210020011202120 in words is "two hundred ten trillion, twenty billion, eleven million, two hundred two thousand, one hundred twenty".