20211222121122 has 8 divisors (see below), whose sum is σ = 40422444242256. Its totient is φ = 6737074040372.

The previous prime is 20211222121109. The next prime is 20211222121151. The reversal of 20211222121122 is 22112122211202.

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

20211222121122 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1684268510088 + ... + 1684268510099.

It is an arithmetic number, because the mean of its divisors is an integer number (5052805530282).

Almost surely, 2^{20211222121122} is an apocalyptic number.

20211222121122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20211222121122 is a wasteful number, since it uses less digits than its factorization.

20211222121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368537020192.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 20211222121122 its reverse (22112122211202), we get a palindrome (42323344332324).

The spelling of 20211222121122 in words is "twenty trillion, two hundred eleven billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred twenty-two".