101211202000021 has 4 divisors (see below), whose sum is σ = 101268741059200. Its totient is φ = 101153662940844.

The previous prime is 101211202000009. The next prime is 101211202000043. The reversal of 101211202000021 is 120000202112101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101211202000021 - 2¹¹ = 101211201997973 is a prime.

It is a super-3 number, since 3×101211202000021³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101211201999965 and 101211202000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211202000061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28769526951 + ... + 28769530468.

It is an arithmetic number, because the mean of its divisors is an integer number (25317185264800).

Almost surely, 2^{101211202000021} is an apocalyptic number.

It is an amenable number.

101211202000021 is a deficient number, since it is larger than the sum of its proper divisors (57539059179).

101211202000021 is an equidigital number, since it uses as much as digits as its factorization.

101211202000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57539059178.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101211202000021 its reverse (120000202112101), we get a palindrome (221211404112122).

The spelling of 101211202000021 in words is "one hundred one trillion, two hundred eleven billion, two hundred two million, twenty-one", and thus it is an aban number.