21210100102022 has 32 divisors (see below), whose sum is σ = 34274427674592. Its totient is φ = 9785861040384.

The previous prime is 21210100101919. The next prime is 21210100102099. The reversal of 21210100102022 is 22020100101212.

It is a junction number, because it is equal to n+sod(n) for n = 21210100101988 and 21210100102006.

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, 1678406288 + ... + 1678418924.

It is an arithmetic number, because the mean of its divisors is an integer number (1071075864831).

Almost surely, 2^{21210100102022} is an apocalyptic number.

21210100102022 is a deficient number, since it is larger than the sum of its proper divisors (13064327572570).

21210100102022 is a wasteful number, since it uses less digits than its factorization.

21210100102022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30072.

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

Adding to 21210100102022 its reverse (22020100101212), we get a palindrome (43230200203234).

The spelling of 21210100102022 in words is "twenty-one trillion, two hundred ten billion, one hundred million, one hundred two thousand, twenty-two".