112100121021 has 16 divisors (see below), whose sum is σ = 170825275904. Its totient is φ = 64054945584.

The previous prime is 112100121017. The next prime is 112100121041. The reversal of 112100121021 is 120121001211.

It is not a de Polignac number, because 112100121021 - 2² = 112100121017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112100120988 and 112100121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112100121041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649530 + ... + 803796.

It is an arithmetic number, because the mean of its divisors is an integer number (10676579744).

Almost surely, 2^112100121021 is an apocalyptic number.

It is an amenable number.

112100121021 is a deficient number, since it is larger than the sum of its proper divisors (58725154883).

112100121021 is a wasteful number, since it uses less digits than its factorization.

112100121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188880.

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

Adding to 112100121021 its reverse (120121001211), we get a palindrome (232221122232).

The spelling of 112100121021 in words is "one hundred twelve billion, one hundred million, one hundred twenty-one thousand, twenty-one".