21110010221010 has 64 divisors (see below), whose sum is σ = 50884266801024. Its totient is φ = 5604916608000.

The previous prime is 21110010220991. The next prime is 21110010221071. The reversal of 21110010221010 is 1012201001112.

It is a super-2 number, since 2×21110010221010² (a number of 27 digits) contains 22 as substring.

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, 4886437 + ... + 8130023.

It is an arithmetic number, because the mean of its divisors is an integer number (795066668766).

Almost surely, 2^{21110010221010} is an apocalyptic number.

21110010221010 is an abundant number, since it is smaller than the sum of its proper divisors (29774256580014).

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

21110010221010 is a wasteful number, since it uses less digits than its factorization.

21110010221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244539.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21110010221010 its reverse (1012201001112), we get a palindrome (22122211222122).

It can be divided in two parts, 211100102 and 21010, that added together give a palindrome (211121112).

The spelling of 21110010221010 in words is "twenty-one trillion, one hundred ten billion, ten million, two hundred twenty-one thousand, ten".