22120121202212 has 96 divisors (see below), whose sum is σ = 43176639873024. Its totient is φ = 9831605168000.

The previous prime is 22120121202211. The next prime is 22120121202269. The reversal of 22120121202212 is 21220212102122.

It is not an unprimeable number, because it can be changed into a prime (22120121202211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1225686173 + ... + 1225704219.

It is an arithmetic number, because the mean of its divisors is an integer number (449756665344).

Almost surely, 2^{22120121202212} is an apocalyptic number.

22120121202212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22120121202212 is a deficient number, since it is larger than the sum of its proper divisors (21056518670812).

22120121202212 is a wasteful number, since it uses less digits than its factorization.

22120121202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21569 (or 21567 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22120121202212 its reverse (21220212102122), we get a palindrome (43340333304334).

The spelling of 22120121202212 in words is "twenty-two trillion, one hundred twenty billion, one hundred twenty-one million, two hundred two thousand, two hundred twelve".