101122021001100 has 144 divisors (see below), whose sum is σ = 319191644177280. Its totient is φ = 24513371404800.

The previous prime is 101122021001087. The next prime is 101122021001191. The reversal of 101122021001100 is 1100120221101.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 77207491 + ... + 78506309.

It is an arithmetic number, because the mean of its divisors is an integer number (2216608640120).

Almost surely, 2^{101122021001100} is an apocalyptic number.

101122021001100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101122021001100 is an abundant number, since it is smaller than the sum of its proper divisors (218069623176180).

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

101122021001100 is a wasteful number, since it uses less digits than its factorization.

101122021001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322440 (or 1322433 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101122021001100 its reverse (1100120221101), we get a palindrome (102222141222201).

The spelling of 101122021001100 in words is "one hundred one trillion, one hundred twenty-two billion, twenty-one million, one thousand, one hundred".