121000100112021 has 64 divisors (see below), whose sum is σ = 176486156808192. Its totient is φ = 73288191474432.

The previous prime is 121000100111941. The next prime is 121000100112041. The reversal of 121000100112021 is 120211001000121.

121000100112021 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 121000100112021 - 2⁹ = 121000100111509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121000100111988 and 121000100112006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121000100112041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26930801251 + ... + 26930805743.

It is an arithmetic number, because the mean of its divisors is an integer number (2757596200128).

Almost surely, 2^{121000100112021} is an apocalyptic number.

It is an amenable number.

121000100112021 is a deficient number, since it is larger than the sum of its proper divisors (55486056696171).

121000100112021 is a wasteful number, since it uses less digits than its factorization.

121000100112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11002.

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

Adding to 121000100112021 its reverse (120211001000121), we get a palindrome (241211101112142).

The spelling of 121000100112021 in words is "one hundred twenty-one trillion, one hundred million, one hundred twelve thousand, twenty-one".