102202002001278 has 24 divisors (see below), whose sum is σ = 221437856865888. Its totient is φ = 34067305406112.

The previous prime is 102202002001277. The next prime is 102202002001283. The reversal of 102202002001278 is 872100200202201.

102202002001278 is a `hidden beast` number, since 10 + 220 + 200 + 200 + 1 + 27 + 8 = 666.

It is a super-2 number, since 2×102202002001278² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102202002001277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41486875 + ... + 43881257.

It is an arithmetic number, because the mean of its divisors is an integer number (9226577369412).

Almost surely, 2^{102202002001278} is an apocalyptic number.

102202002001278 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

102202002001278 is an abundant number, since it is smaller than the sum of its proper divisors (119235854864610).

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

102202002001278 is a wasteful number, since it uses less digits than its factorization.

102202002001278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4765728 (or 4765725 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

Adding to 102202002001278 its reverse (872100200202201), we get a palindrome (974302202203479).

The spelling of 102202002001278 in words is "one hundred two trillion, two hundred two billion, two million, one thousand, two hundred seventy-eight".