101200220100 has 144 divisors (see below), whose sum is σ = 371817174400. Its totient is φ = 23131474560.

The previous prime is 101200220089. The next prime is 101200220111. The reversal of 101200220100 is 1022002101.

It is an interprime number because it is at equal distance from previous prime (101200220089) and next prime (101200220111).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2658355 + ... + 2696154.

Almost surely, 2^101200220100 is an apocalyptic number.

101200220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101200220100 is an abundant number, since it is smaller than the sum of its proper divisors (270616954300).

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

101200220100 is a wasteful number, since it uses less digits than its factorization.

101200220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5354539 (or 5354526 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 101200220100 its reverse (1022002101), we get a palindrome (102222222201).

The spelling of 101200220100 in words is "one hundred one billion, two hundred million, two hundred twenty thousand, one hundred".