21110210022212 has 48 divisors (see below), whose sum is σ = 38866864176000. Its totient is φ = 10017795642624.

The previous prime is 21110210022157. The next prime is 21110210022283. The reversal of 21110210022212 is 21222001201112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124592489 + ... + 124761807.

It is an arithmetic number, because the mean of its divisors is an integer number (809726337000).

Almost surely, 2^{21110210022212} is an apocalyptic number.

It is an amenable number.

21110210022212 is a deficient number, since it is larger than the sum of its proper divisors (17756654153788).

21110210022212 is a wasteful number, since it uses less digits than its factorization.

21110210022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187628 (or 187626 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21110210022212 its reverse (21222001201112), we get a palindrome (42332211223324).

The spelling of 21110210022212 in words is "twenty-one trillion, one hundred ten billion, two hundred ten million, twenty-two thousand, two hundred twelve".