1022199999939 has 32 divisors (see below), whose sum is σ = 1544775344640. Its totient is φ = 667887698016.

The previous prime is 1022199999917. The next prime is 1022199999973. The reversal of 1022199999939 is 9399999912201.

It is not a de Polignac number, because 1022199999939 - 2⁷ = 1022199999811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1022199992939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1077799 + ... + 1790544.

It is an arithmetic number, because the mean of its divisors is an integer number (48274229520).

Almost surely, 2^{1022199999939} is an apocalyptic number.

1022199999939 is a deficient number, since it is larger than the sum of its proper divisors (522575344701).

1022199999939 is a wasteful number, since it uses less digits than its factorization.

1022199999939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868616 (or 2868610 counting only the distinct ones).

The product of its (nonzero) digits is 57395628, while the sum is 72.

The spelling of 1022199999939 in words is "one trillion, twenty-two billion, one hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred thirty-nine".