112121100021210 has 128 divisors (see below), whose sum is σ = 308055696791040. Its totient is φ = 25584058773504.

The previous prime is 112121100021167. The next prime is 112121100021257. The reversal of 112121100021210 is 12120001121211.

It is a happy number.

It is a super-2 number, since 2×112121100021210² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 112121100021210.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2049381336 + ... + 2049436044.

It is an arithmetic number, because the mean of its divisors is an integer number (2406685131180).

Almost surely, 2^{112121100021210} is an apocalyptic number.

112121100021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

112121100021210 is an abundant number, since it is smaller than the sum of its proper divisors (195934596769830).

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

112121100021210 is a wasteful number, since it uses less digits than its factorization.

112121100021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71160.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 112121100021210 its reverse (12120001121211), we get a palindrome (124241101142421).

The spelling of 112121100021210 in words is "one hundred twelve trillion, one hundred twenty-one billion, one hundred million, twenty-one thousand, two hundred ten".