21002022011210 has 32 divisors (see below), whose sum is σ = 37813564938240. Its totient is φ = 8398603527552.

The previous prime is 21002022011209. The next prime is 21002022011287. The reversal of 21002022011210 is 1211022020012.

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, 842799131 + ... + 842824049.

It is an arithmetic number, because the mean of its divisors is an integer number (1181673904320).

Almost surely, 2^{21002022011210} is an apocalyptic number.

21002022011210 is a deficient number, since it is larger than the sum of its proper divisors (16811542927030).

21002022011210 is a wasteful number, since it uses less digits than its factorization.

21002022011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43670.

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

Adding to 21002022011210 its reverse (1211022020012), we get a palindrome (22213044031222).

The spelling of 21002022011210 in words is "twenty-one trillion, two billion, twenty-two million, eleven thousand, two hundred ten".