22001220002112 has 56 divisors (see below), whose sum is σ = 62689373666976. Its totient is φ = 6769606153728.

The previous prime is 22001220002081. The next prime is 22001220002137. The reversal of 22001220002112 is 21120002210022.

It is a junction number, because it is equal to n+sod(n) for n = 22001220002091 and 22001220002100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4407293178 + ... + 4407298169.

It is an arithmetic number, because the mean of its divisors is an integer number (1119453101196).

Almost surely, 2^{22001220002112} is an apocalyptic number.

It is an amenable number.

22001220002112 is an abundant number, since it is smaller than the sum of its proper divisors (40688153664864).

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

22001220002112 is a wasteful number, since it uses less digits than its factorization.

22001220002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8814591375 (or 8814591365 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22001220002112 its reverse (21120002210022), we get a palindrome (43121222212134).

The spelling of 22001220002112 in words is "twenty-two trillion, one billion, two hundred twenty million, two thousand, one hundred twelve".