22012010999956 has 48 divisors (see below), whose sum is σ = 40910281251840. Its totient is φ = 10327307880960.

The previous prime is 22012010999917. The next prime is 22012010999959. The reversal of 22012010999956 is 65999901021022.

It is a junction number, because it is equal to n+sod(n) for n = 22012010999897 and 22012010999906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012010999959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41618341 + ... + 42143923.

It is an arithmetic number, because the mean of its divisors is an integer number (852297526080).

Almost surely, 2^{22012010999956} is an apocalyptic number.

It is an amenable number.

22012010999956 is a deficient number, since it is larger than the sum of its proper divisors (18898270251884).

22012010999956 is a wasteful number, since it uses less digits than its factorization.

22012010999956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527464 (or 527462 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 55.

The spelling of 22012010999956 in words is "twenty-two trillion, twelve billion, ten million, nine hundred ninety-nine thousand, nine hundred fifty-six".