101200111021100 has 144 divisors (see below), whose sum is σ = 273984639569088. Its totient is φ = 31589424783360.

The previous prime is 101200111021073. The next prime is 101200111021127. The reversal of 101200111021100 is 1120111002101.

It is an interprime number because it is at equal distance from previous prime (101200111021073) and next prime (101200111021127).

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, 75506189 + ... + 76834788.

Almost surely, 2^{101200111021100} is an apocalyptic number.

101200111021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101200111021100 is an abundant number, since it is smaller than the sum of its proper divisors (172784528547988).

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

101200111021100 is a wasteful number, since it uses less digits than its factorization.

101200111021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152341084 (or 152341077 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101200111021100 its reverse (1120111002101), we get a palindrome (102320222023201).

The spelling of 101200111021100 in words is "one hundred one trillion, two hundred billion, one hundred eleven million, twenty-one thousand, one hundred".