100121010212001 has 16 divisors (see below), whose sum is σ = 137143076461568. Its totient is φ = 64924206048000.

The previous prime is 100121010211973. The next prime is 100121010212059. The reversal of 100121010212001 is 100212010121001.

It is a de Polignac number, because none of the positive numbers 2^k-100121010212001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100121010212801) 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, 132621400 + ... + 133374201.

It is an arithmetic number, because the mean of its divisors is an integer number (8571442278848).

Almost surely, 2^{100121010212001} is an apocalyptic number.

It is an amenable number.

100121010212001 is a deficient number, since it is larger than the sum of its proper divisors (37022066249567).

100121010212001 is a wasteful number, since it uses less digits than its factorization.

100121010212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265999032.

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

Adding to 100121010212001 its reverse (100212010121001), we get a palindrome (200333020333002).

The spelling of 100121010212001 in words is "one hundred trillion, one hundred twenty-one billion, ten million, two hundred twelve thousand, one".