22021001002122 has 64 divisors (see below), whose sum is σ = 44408996905728. Its totient is φ = 7279409088000.

The previous prime is 22021001002067. The next prime is 22021001002123. The reversal of 22021001002122 is 22120010012022.

It is not an unprimeable number, because it can be changed into a prime (22021001002123) 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, 1276053318 + ... + 1276070574.

It is an arithmetic number, because the mean of its divisors is an integer number (693890576652).

Almost surely, 2^{22021001002122} is an apocalyptic number.

22021001002122 is an abundant number, since it is smaller than the sum of its proper divisors (22387995903606).

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

22021001002122 is a wasteful number, since it uses less digits than its factorization.

22021001002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20655.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22021001002122 its reverse (22120010012022), we get a palindrome (44141011014144).

The spelling of 22021001002122 in words is "twenty-two trillion, twenty-one billion, one million, two thousand, one hundred twenty-two".