22123011003212 has 24 divisors (see below), whose sum is σ = 44249718777600. Its totient is φ = 9480498264720.

The previous prime is 22123011003209. The next prime is 22123011003263. The reversal of 22123011003212 is 21230011032122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32665712 + ... + 33336087.

It is an arithmetic number, because the mean of its divisors is an integer number (1843738282400).

Almost surely, 2^{22123011003212} is an apocalyptic number.

It is an amenable number.

22123011003212 is an abundant number, since it is smaller than the sum of its proper divisors (22126707774388).

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

22123011003212 is a wasteful number, since it uses less digits than its factorization.

22123011003212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66013781 (or 66013779 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 22123011003212 its reverse (21230011032122), we get a palindrome (43353022035334).

The spelling of 22123011003212 in words is "twenty-two trillion, one hundred twenty-three billion, eleven million, three thousand, two hundred twelve".