102010221100 has 36 divisors (see below), whose sum is σ = 221465084008. Its totient is φ = 40785120000.

The previous prime is 102010221091. The next prime is 102010221107. The reversal of 102010221100 is 1122010201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (102010221107) 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, 19926 + ... + 452125.

Almost surely, 2^102010221100 is an apocalyptic number.

102010221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102010221100 is an abundant number, since it is smaller than the sum of its proper divisors (119454862908).

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

102010221100 is a wasteful number, since it uses less digits than its factorization.

102010221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474226 (or 474219 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 102010221100 its reverse (1122010201), we get a palindrome (103132231301).

The spelling of 102010221100 in words is "one hundred two billion, ten million, two hundred twenty-one thousand, one hundred".