101222122100021 has 16 divisors (see below), whose sum is σ = 112853895826560. Its totient is φ = 90144644748480.

The previous prime is 101222122099961. The next prime is 101222122100119. The reversal of 101222122100021 is 120001221222101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101222122100021 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 (101222122100221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102537815 + ... + 103520276.

It is an arithmetic number, because the mean of its divisors is an integer number (7053368489160).

Almost surely, 2^{101222122100021} is an apocalyptic number.

It is an amenable number.

101222122100021 is a deficient number, since it is larger than the sum of its proper divisors (11631773726539).

101222122100021 is a wasteful number, since it uses less digits than its factorization.

101222122100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206059436.

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

Adding to 101222122100021 its reverse (120001221222101), we get a palindrome (221223343322122).

The spelling of 101222122100021 in words is "one hundred one trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred thousand, twenty-one".