101200102220021 has 16 divisors (see below), whose sum is σ = 122461031176704. Its totient is φ = 81640149744384.

The previous prime is 101200102220003. The next prime is 101200102220053. The reversal of 101200102220021 is 120022201002101.

It is not a de Polignac number, because 101200102220021 - 2³⁴ = 101182922350837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101200102219978 and 101200102220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101200102220071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40011611 + ... + 42465623.

It is an arithmetic number, because the mean of its divisors is an integer number (7653814448544).

Almost surely, 2^{101200102220021} is an apocalyptic number.

It is an amenable number.

101200102220021 is a deficient number, since it is larger than the sum of its proper divisors (21260928956683).

101200102220021 is a wasteful number, since it uses less digits than its factorization.

101200102220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800580.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 101200102220021 its reverse (120022201002101), we get a palindrome (221222303222122).

The spelling of 101200102220021 in words is "one hundred one trillion, two hundred billion, one hundred two million, two hundred twenty thousand, twenty-one".