101210113021 has 8 divisors (see below), whose sum is σ = 102114633600. Its totient is φ = 100305748032.

The previous prime is 101210112977. The next prime is 101210113091. The reversal of 101210113021 is 120311012101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101210113021 - 2¹⁵ = 101210080253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101210112992 and 101210113010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101210113091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1559580 + ... + 1623178.

It is an arithmetic number, because the mean of its divisors is an integer number (12764329200).

Almost surely, 2^101210113021 is an apocalyptic number.

It is an amenable number.

101210113021 is a deficient number, since it is larger than the sum of its proper divisors (904520579).

101210113021 is a wasteful number, since it uses less digits than its factorization.

101210113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77795.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 101210113021 its reverse (120311012101), we get a palindrome (221521125122).

The spelling of 101210113021 in words is "one hundred one billion, two hundred ten million, one hundred thirteen thousand, twenty-one".