21002011022210 has 32 divisors (see below), whose sum is σ = 38055873123072. Its totient is φ = 8344753675200.

The previous prime is 21002011022189. The next prime is 21002011022233. The reversal of 21002011022210 is 1222011020012.

It is a super-2 number, since 2×21002011022210² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30864572 + ... + 31537688.

It is an arithmetic number, because the mean of its divisors is an integer number (1189246035096).

Almost surely, 2^{21002011022210} is an apocalyptic number.

21002011022210 is a deficient number, since it is larger than the sum of its proper divisors (17053862100862).

21002011022210 is a wasteful number, since it uses less digits than its factorization.

21002011022210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693938.

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

Adding to 21002011022210 its reverse (1222011020012), we get a palindrome (22224022042222).

The spelling of 21002011022210 in words is "twenty-one trillion, two billion, eleven million, twenty-two thousand, two hundred ten".