22156511213040 has 160 divisors (see below), whose sum is σ = 71957045454336. Its totient is φ = 5628999552000.

The previous prime is 22156511213029. The next prime is 22156511213059. The reversal of 22156511213040 is 4031211565122.

It is a junction number, because it is equal to n+sod(n) for n = 22156511212992 and 22156511213010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6610219 + ... + 9381258.

Almost surely, 2^{22156511213040} is an apocalyptic number.

22156511213040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22156511213040 is an abundant number, since it is smaller than the sum of its proper divisors (49800534241296).

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

22156511213040 is a wasteful number, since it uses less digits than its factorization.

22156511213040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15991767 (or 15991761 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 22156511213040 its reverse (4031211565122), we get a palindrome (26187722778162).

The spelling of 22156511213040 in words is "twenty-two trillion, one hundred fifty-six billion, five hundred eleven million, two hundred thirteen thousand, forty".