21210022101022 has 32 divisors (see below), whose sum is σ = 32604680908800. Its totient is φ = 10345452468000.

The previous prime is 21210022101001. The next prime is 21210022101041. The reversal of 21210022101022 is 22010122001212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21210022100987 and 21210022101005.

It is a congruent number.

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, 6256497 + ... + 9031267.

It is an arithmetic number, because the mean of its divisors is an integer number (1018896278400).

Almost surely, 2^{21210022101022} is an apocalyptic number.

21210022101022 is a deficient number, since it is larger than the sum of its proper divisors (11394658807778).

21210022101022 is a wasteful number, since it uses less digits than its factorization.

21210022101022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775432.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21210022101022 its reverse (22010122001212), we get a palindrome (43220144102234).

The spelling of 21210022101022 in words is "twenty-one trillion, two hundred ten billion, twenty-two million, one hundred one thousand, twenty-two".