101111010012120 has 128 divisors (see below), whose sum is σ = 303633721635840. Its totient is φ = 26936214850560.

The previous prime is 101111010012079. The next prime is 101111010012137. The reversal of 101111010012120 is 21210010111101.

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

It is a junction number, because it is equal to n+sod(n) for n = 101111010012096 and 101111010012105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1000781047 + ... + 1000882073.

It is an arithmetic number, because the mean of its divisors is an integer number (2372138450280).

Almost surely, 2^{101111010012120} is an apocalyptic number.

101111010012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101111010012120 is an abundant number, since it is smaller than the sum of its proper divisors (202522711623720).

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

101111010012120 is a wasteful number, since it uses less digits than its factorization.

101111010012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109225 (or 109221 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 101111010012120 its reverse (21210010111101), we get a palindrome (122321020123221).

The spelling of 101111010012120 in words is "one hundred one trillion, one hundred eleven billion, ten million, twelve thousand, one hundred twenty".