22021212231030 has 32 divisors (see below), whose sum is σ = 53156405952864. Its totient is φ = 5838379195136.

The previous prime is 22021212230999. The next prime is 22021212231049. The reversal of 22021212231030 is 3013221212022.

It is a junction number, because it is equal to n+sod(n) for n = 22021212230988 and 22021212231006.

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, 2121498879 + ... + 2121509258.

It is an arithmetic number, because the mean of its divisors is an integer number (1661137686027).

Almost surely, 2^{22021212231030} is an apocalyptic number.

22021212231030 is an abundant number, since it is smaller than the sum of its proper divisors (31135193721834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22021212231030 is a wasteful number, since it uses less digits than its factorization.

22021212231030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243008320.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 22021212231030 its reverse (3013221212022), we get a palindrome (25034433443052).

The spelling of 22021212231030 in words is "twenty-two trillion, twenty-one billion, two hundred twelve million, two hundred thirty-one thousand, thirty".