112021102121220 has 72 divisors (see below), whose sum is σ = 343096346488896. Its totient is φ = 29582271623232.

The previous prime is 112021102121219. The next prime is 112021102121231. The reversal of 112021102121220 is 22121201120211.

112021102121220 is a `hidden beast` number, since 1 + 1 + 20 + 211 + 0 + 212 + 1 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 112021102121193 and 112021102121202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3021046782 + ... + 3021083861.

It is an arithmetic number, because the mean of its divisors is an integer number (4765227034568).

Almost surely, 2^{112021102121220} is an apocalyptic number.

112021102121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112021102121220 is an abundant number, since it is smaller than the sum of its proper divisors (231075244367676).

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

112021102121220 is a wasteful number, since it uses less digits than its factorization.

112021102121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6042130761 (or 6042130756 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 112021102121220 its reverse (22121201120211), we get a palindrome (134142303241431).

The spelling of 112021102121220 in words is "one hundred twelve trillion, twenty-one billion, one hundred two million, one hundred twenty-one thousand, two hundred twenty".