122200200001021 has 4 divisors (see below), whose sum is σ = 122201062121952. Its totient is φ = 122199337880092.

The previous prime is 122200200000971. The next prime is 122200200001031. The reversal of 122200200001021 is 120100002002221.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-122200200001021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122200200000992 and 122200200001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122200200001031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430847815 + ... + 431131348.

It is an arithmetic number, because the mean of its divisors is an integer number (30550265530488).

Almost surely, 2^{122200200001021} is an apocalyptic number.

It is an amenable number.

122200200001021 is a deficient number, since it is larger than the sum of its proper divisors (862120931).

122200200001021 is an equidigital number, since it uses as much as digits as its factorization.

122200200001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862120930.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122200200001021 its reverse (120100002002221), we get a palindrome (242300202003242).

The spelling of 122200200001021 in words is "one hundred twenty-two trillion, two hundred billion, two hundred million, one thousand, twenty-one".