21102122002022 has 16 divisors (see below), whose sum is σ = 32017635046080. Its totient is φ = 10430221464768.

The previous prime is 21102122002021. The next prime is 21102122002037. The reversal of 21102122002022 is 22020022120112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21102122002021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161053853 + ... + 161184824.

It is an arithmetic number, because the mean of its divisors is an integer number (2001102190380).

Almost surely, 2^{21102122002022} is an apocalyptic number.

21102122002022 is a deficient number, since it is larger than the sum of its proper divisors (10915513044058).

21102122002022 is a wasteful number, since it uses less digits than its factorization.

21102122002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322239055.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21102122002022 its reverse (22020022120112), we get a palindrome (43122144122134).

The spelling of 21102122002022 in words is "twenty-one trillion, one hundred two billion, one hundred twenty-two million, two thousand, twenty-two".