21100212022010 has 64 divisors (see below), whose sum is σ = 43812860249088. Its totient is φ = 7244189760000.

The previous prime is 21100212022003. The next prime is 21100212022061. The reversal of 21100212022010 is 1022021200112.

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, 75320501 + ... + 75600120.

It is an arithmetic number, because the mean of its divisors is an integer number (684575941392).

Almost surely, 2^{21100212022010} is an apocalyptic number.

21100212022010 is an abundant number, since it is smaller than the sum of its proper divisors (22712648227078).

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

21100212022010 is a wasteful number, since it uses less digits than its factorization.

21100212022010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150920711.

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

Adding to 21100212022010 its reverse (1022021200112), we get a palindrome (22122233222122).

The spelling of 21100212022010 in words is "twenty-one trillion, one hundred billion, two hundred twelve million, twenty-two thousand, ten".