21112102002022 has 12 divisors (see below), whose sum is σ = 32547181359420. Its totient is φ = 10270752323976.

The previous prime is 21112102002001. The next prime is 21112102002023. The reversal of 21112102002022 is 22020020121112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21112102001987 and 21112102002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112102002023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3855384772 + ... + 3855390247.

It is an arithmetic number, because the mean of its divisors is an integer number (2712265113285).

Almost surely, 2^{21112102002022} is an apocalyptic number.

21112102002022 is a deficient number, since it is larger than the sum of its proper divisors (11435079357398).

21112102002022 is an equidigital number, since it uses as much as digits as its factorization.

21112102002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7710775095 (or 7710775058 counting only the distinct ones).

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

Adding to 21112102002022 its reverse (22020020121112), we get a palindrome (43132122123134).

The spelling of 21112102002022 in words is "twenty-one trillion, one hundred twelve billion, one hundred two million, two thousand, twenty-two".