120101320100021 has 16 divisors (see below), whose sum is σ = 130285001145600. Its totient is φ = 110052668719488.

The previous prime is 120101320099991. The next prime is 120101320100057. The reversal of 120101320100021 is 120001023101021.

It is a cyclic number.

It is not a de Polignac number, because 120101320100021 - 2²² = 120101315905717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120101320099969 and 120101320100005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120101320100521) 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, 365508920 + ... + 365837358.

It is an arithmetic number, because the mean of its divisors is an integer number (8142812571600).

Almost surely, 2^{120101320100021} is an apocalyptic number.

It is an amenable number.

120101320100021 is a deficient number, since it is larger than the sum of its proper divisors (10183681045579).

120101320100021 is a wasteful number, since it uses less digits than its factorization.

120101320100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533908.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 120101320100021 its reverse (120001023101021), we get a palindrome (240102343201042).

The spelling of 120101320100021 in words is "one hundred twenty trillion, one hundred one billion, three hundred twenty million, one hundred thousand, twenty-one".