122000100200021 has 8 divisors (see below), whose sum is σ = 122263076127744. Its totient is φ = 121737234659040.

The previous prime is 122000100199973. The next prime is 122000100200023. The reversal of 122000100200021 is 120002001000221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 122000100200021 - 2⁴⁶ = 51631356022357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122000100199975 and 122000100200011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122000100200023) 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, 25383701 + ... + 29804906.

It is an arithmetic number, because the mean of its divisors is an integer number (15282884515968).

Almost surely, 2^{122000100200021} is an apocalyptic number.

It is an amenable number.

122000100200021 is a deficient number, since it is larger than the sum of its proper divisors (262975927723).

122000100200021 is an equidigital number, since it uses as much as digits as its factorization.

122000100200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55193371.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 122000100200021 its reverse (120002001000221), we get a palindrome (242002101200242).

The spelling of 122000100200021 in words is "one hundred twenty-two trillion, one hundred million, two hundred thousand, twenty-one".