101212022021021 has 4 divisors (see below), whose sum is σ = 103365469298112. Its totient is φ = 99058574743932.

The previous prime is 101212022021017. The next prime is 101212022021081. The reversal of 101212022021021 is 120120220212101.

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 101212022021021 - 2² = 101212022021017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212022021081) 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, 1076723638475 + ... + 1076723638568.

It is an arithmetic number, because the mean of its divisors is an integer number (25841367324528).

Almost surely, 2^{101212022021021} is an apocalyptic number.

It is an amenable number.

101212022021021 is a deficient number, since it is larger than the sum of its proper divisors (2153447277091).

101212022021021 is an equidigital number, since it uses as much as digits as its factorization.

101212022021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153447277090.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101212022021021 its reverse (120120220212101), we get a palindrome (221332242233122).

The spelling of 101212022021021 in words is "one hundred one trillion, two hundred twelve billion, twenty-two million, twenty-one thousand, twenty-one".