22121683488148 has 6 divisors (see below), whose sum is σ = 38712946104266. Its totient is φ = 11060841744072.

The previous prime is 22121683488137. The next prime is 22121683488167. The reversal of 22121683488148 is 84188438612122.

It can be written as a sum of positive squares in only one way, i.e., 12952887376144 + 9168796112004 = 3599012^2 + 3028002^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22121683488092 and 22121683488101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765210436015 + ... + 2765210436022.

Almost surely, 2^{22121683488148} is an apocalyptic number.

It is an amenable number.

22121683488148 is a deficient number, since it is larger than the sum of its proper divisors (16591262616118).

22121683488148 is a wasteful number, since it uses less digits than its factorization.

22121683488148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5530420872041 (or 5530420872039 counting only the distinct ones).

The product of its digits is 9437184, while the sum is 58.

The spelling of 22121683488148 in words is "twenty-two trillion, one hundred twenty-one billion, six hundred eighty-three million, four hundred eighty-eight thousand, one hundred forty-eight".