22012122987 has 24 divisors (see below), whose sum is σ = 31968256320. Its totient is φ = 14595073920.

The previous prime is 22012122943. The next prime is 22012123013. The reversal of 22012122987 is 78922121022.

It is not a de Polignac number, because 22012122987 - 2¹⁴ = 22012106603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22012120987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1837437 + ... + 1849377.

It is an arithmetic number, because the mean of its divisors is an integer number (1332010680).

Almost surely, 2^22012122987 is an apocalyptic number.

22012122987 is a deficient number, since it is larger than the sum of its proper divisors (9956133333).

22012122987 is a wasteful number, since it uses less digits than its factorization.

22012122987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13043 (or 13040 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 22012122987 in words is "twenty-two billion, twelve million, one hundred twenty-two thousand, nine hundred eighty-seven".