101011112021020 has 24 divisors (see below), whose sum is σ = 218966023479168. Its totient is φ = 39101075620800.

The previous prime is 101011112020873. The next prime is 101011112021123. The reversal of 101011112021020 is 20120211110101.

It is a happy number.

It is a super-2 number, since 2×101011112021020² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81460573591 + ... + 81460574830.

It is an arithmetic number, because the mean of its divisors is an integer number (9123584311632).

Almost surely, 2^{101011112021020} is an apocalyptic number.

101011112021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101011112021020 is an abundant number, since it is smaller than the sum of its proper divisors (117954911458148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101011112021020 is a wasteful number, since it uses less digits than its factorization.

101011112021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162921148461 (or 162921148459 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101011112021020 its reverse (20120211110101), we get a palindrome (121131323131121).

The spelling of 101011112021020 in words is "one hundred one trillion, eleven billion, one hundred twelve million, twenty-one thousand, twenty".