22120222202121 has 8 divisors (see below), whose sum is σ = 29493656249760. Its totient is φ = 14746801477952.

The previous prime is 22120222202101. The next prime is 22120222202147. The reversal of 22120222202121 is 12120222202122.

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-22120222202121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22120222202101) 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, 1575466 + ... + 6835388.

It is an arithmetic number, because the mean of its divisors is an integer number (3686707031220).

Almost surely, 2^{22120222202121} is an apocalyptic number.

It is an amenable number.

22120222202121 is a deficient number, since it is larger than the sum of its proper divisors (7373434047639).

22120222202121 is a wasteful number, since it uses less digits than its factorization.

22120222202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6661735.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22120222202121 its reverse (12120222202122), we get a palindrome (34240444404243).

Subtracting from 22120222202121 its reverse (12120222202122), we obtain a palindrome (9999999999999).

The spelling of 22120222202121 in words is "twenty-two trillion, one hundred twenty billion, two hundred twenty-two million, two hundred two thousand, one hundred twenty-one".