20100021011210 has 64 divisors (see below), whose sum is σ = 43962550156800. Its totient is φ = 6459144007680.

The previous prime is 20100021011201. The next prime is 20100021011233. The reversal of 20100021011210 is 1211012000102.

It is a junction number, because it is equal to n+sod(n) for n = 20100021011191 and 20100021011200.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34756310 + ... + 35329889.

It is an arithmetic number, because the mean of its divisors is an integer number (686914846200).

Almost surely, 2^{20100021011210} is an apocalyptic number.

20100021011210 is an abundant number, since it is smaller than the sum of its proper divisors (23862529145590).

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

20100021011210 is a wasteful number, since it uses less digits than its factorization.

20100021011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70086471.

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

Adding to 20100021011210 its reverse (1211012000102), we get a palindrome (21311033011312).

The spelling of 20100021011210 in words is "twenty trillion, one hundred billion, twenty-one million, eleven thousand, two hundred ten".