101200222220021 has 8 divisors (see below), whose sum is σ = 101377361171544. Its totient is φ = 101023155889920.

The previous prime is 101200222220003. The next prime is 101200222220147. The reversal of 101200222220021 is 120022222002101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14433996624100 + 86766225595921 = 3799210^2 + 9314839^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101200222220021 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 (101200222220621) 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, 15365480 + ... + 20940353.

It is an arithmetic number, because the mean of its divisors is an integer number (12672170146443).

Almost surely, 2^{101200222220021} is an apocalyptic number.

It is an amenable number.

101200222220021 is a deficient number, since it is larger than the sum of its proper divisors (177138951523).

101200222220021 is an equidigital number, since it uses as much as digits as its factorization.

101200222220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36310711.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 101200222220021 its reverse (120022222002101), we get a palindrome (221222444222122).

The spelling of 101200222220021 in words is "one hundred one trillion, two hundred billion, two hundred twenty-two million, two hundred twenty thousand, twenty-one".