22012121110000 has 200 divisors, whose sum is σ = 64112540919680. Its totient is φ = 7149801312000.

The previous prime is 22012121109941. The next prime is 22012121110009. The reversal of 22012121110000 is 1112121022.

It is a tau number, because it is divible by the number of its divisors (200).

It is a super-2 number, since 2×22012121110000² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012121110009) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6945234 + ... + 9605233.

Almost surely, 2^{22012121110000} is an apocalyptic number.

22012121110000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012121110000 is an abundant number, since it is smaller than the sum of its proper divisors (42100419809680).

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

22012121110000 is a wasteful number, since it uses less digits than its factorization.

22012121110000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16550521 (or 16550500 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22012121110000 its reverse (1112121022), we get a palindrome (22013233231022).

The spelling of 22012121110000 in words is "twenty-two trillion, twelve billion, one hundred twenty-one million, one hundred ten thousand".