101001012021021 has 16 divisors (see below), whose sum is σ = 153913219084800. Its totient is φ = 57712270867248.

The previous prime is 101001012021017. The next prime is 101001012021083. The reversal of 101001012021021 is 120120210100101.

It is not a de Polignac number, because 101001012021021 - 2² = 101001012021017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101001012020988 and 101001012021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101001012021521) 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, 107569131 + ... + 108504008.

It is an arithmetic number, because the mean of its divisors is an integer number (9619576192800).

Almost surely, 2^{101001012021021} is an apocalyptic number.

It is an amenable number.

101001012021021 is a deficient number, since it is larger than the sum of its proper divisors (52912207063779).

101001012021021 is a wasteful number, since it uses less digits than its factorization.

101001012021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216095408.

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

Adding to 101001012021021 its reverse (120120210100101), we get a palindrome (221121222121122).

The spelling of 101001012021021 in words is "one hundred one trillion, one billion, twelve million, twenty-one thousand, twenty-one".