2122200212021 has 16 divisors (see below), whose sum is σ = 2211372273600. Its totient is φ = 2034827548800.

The previous prime is 2122200212003. The next prime is 2122200212059. The reversal of 2122200212021 is 1202120022212.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122200212021 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 (2122200212521) 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, 9539426 + ... + 9759356.

It is an arithmetic number, because the mean of its divisors is an integer number (138210767100).

Almost surely, 2^{2122200212021} is an apocalyptic number.

It is an amenable number.

2122200212021 is a deficient number, since it is larger than the sum of its proper divisors (89172061579).

2122200212021 is a wasteful number, since it uses less digits than its factorization.

2122200212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224020.

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

Adding to 2122200212021 its reverse (1202120022212), we get a palindrome (3324320234233).

The spelling of 2122200212021 in words is "two trillion, one hundred twenty-two billion, two hundred million, two hundred twelve thousand, twenty-one".