122200222100021 has 8 divisors (see below), whose sum is σ = 131979490599264. Its totient is φ = 112475132374320.

The previous prime is 122200222099993. The next prime is 122200222100023. The reversal of 122200222100021 is 120001222002221.

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 a de Polignac number, because none of the positive numbers 2^k-122200222100021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122200222100023) 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, 13544688695 + ... + 13544697716.

It is an arithmetic number, because the mean of its divisors is an integer number (16497436324908).

Almost surely, 2^{122200222100021} is an apocalyptic number.

It is an amenable number.

122200222100021 is a deficient number, since it is larger than the sum of its proper divisors (9779268499243).

122200222100021 is a wasteful number, since it uses less digits than its factorization.

122200222100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27089386771.

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

Adding to 122200222100021 its reverse (120001222002221), we get a palindrome (242201444102242).

The spelling of 122200222100021 in words is "one hundred twenty-two trillion, two hundred billion, two hundred twenty-two million, one hundred thousand, twenty-one".