21000212022110 has 64 divisors (see below), whose sum is σ = 39260119219200. Its totient is φ = 8081584866432.

The previous prime is 21000212022077. The next prime is 21000212022161. The reversal of 21000212022110 is 1122021200012.

It is a congruent number.

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, 450248171 + ... + 450294809.

It is an arithmetic number, because the mean of its divisors is an integer number (613439362800).

Almost surely, 2^{21000212022110} is an apocalyptic number.

21000212022110 is a deficient number, since it is larger than the sum of its proper divisors (18259907197090).

21000212022110 is a wasteful number, since it uses less digits than its factorization.

21000212022110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62385.

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

Adding to 21000212022110 its reverse (1122021200012), we get a palindrome (22122233222122).

The spelling of 21000212022110 in words is "twenty-one trillion, two hundred twelve million, twenty-two thousand, one hundred ten".