10638220100 has 36 divisors (see below), whose sum is σ = 23127259344. Its totient is φ = 4247486880.

The previous prime is 10638220093. The next prime is 10638220127. The reversal of 10638220100 is 102283601.

It is a super-2 number, since 2×10638220100² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42542 + ... + 151941.

Almost surely, 2^10638220100 is an apocalyptic number.

10638220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10638220100 is an abundant number, since it is smaller than the sum of its proper divisors (12489039244).

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

10638220100 is a wasteful number, since it uses less digits than its factorization.

10638220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195044 (or 195037 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 10638220100 in words is "ten billion, six hundred thirty-eight million, two hundred twenty thousand, one hundred".