101220020111021 has 8 divisors (see below), whose sum is σ = 115681363230720. Its totient is φ = 86759012053008.

The previous prime is 101220020111011. The next prime is 101220020111033. The reversal of 101220020111021 is 120111020022101.

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 101220020111021 - 2¹⁸ = 101220019848877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101220020110987 and 101220020111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220020111011) 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, 83117741 + ... + 84326738.

It is an arithmetic number, because the mean of its divisors is an integer number (14460170403840).

Almost surely, 2^{101220020111021} is an apocalyptic number.

It is an amenable number.

101220020111021 is a deficient number, since it is larger than the sum of its proper divisors (14461343119699).

101220020111021 is an equidigital number, since it uses as much as digits as its factorization.

101220020111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167530843.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101220020111021 its reverse (120111020022101), we get a palindrome (221331040133122).

The spelling of 101220020111021 in words is "one hundred one trillion, two hundred twenty billion, twenty million, one hundred eleven thousand, twenty-one".