22022001631512 has 160 divisors (see below), whose sum is σ = 64943197585200. Its totient is φ = 6952733107200.

The previous prime is 22022001631507. The next prime is 22022001631633. The reversal of 22022001631512 is 21513610022022.

22022001631512 is a `hidden beast` number, since 2 + 2 + 0 + 2 + 20 + 0 + 1 + 631 + 5 + 1 + 2 = 666.

It is a super-2 number, since 2×22022001631512² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 54476212 + ... + 54878972.

Almost surely, 2^{22022001631512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22022001631512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32471598792600).

22022001631512 is an abundant number, since it is smaller than the sum of its proper divisors (42921195953688).

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

22022001631512 is a wasteful number, since it uses less digits than its factorization.

22022001631512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407239 (or 407226 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 22022001631512 its reverse (21513610022022), we get a palindrome (43535611653534).

The spelling of 22022001631512 in words is "twenty-two trillion, twenty-two billion, one million, six hundred thirty-one thousand, five hundred twelve".