22121120122102 has 4 divisors (see below), whose sum is σ = 33181680183156. Its totient is φ = 11060560061050.

The previous prime is 22121120122067. The next prime is 22121120122103. The reversal of 22121120122102 is 20122102112122.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22121120122102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121120122103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530280030524 + ... + 5530280030527.

It is an arithmetic number, because the mean of its divisors is an integer number (8295420045789).

Almost surely, 2^{22121120122102} is an apocalyptic number.

22121120122102 is a deficient number, since it is larger than the sum of its proper divisors (11060560061054).

22121120122102 is a wasteful number, since it uses less digits than its factorization.

22121120122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11060560061053.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22121120122102 its reverse (20122102112122), we get a palindrome (42243222234224).

The spelling of 22121120122102 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twenty million, one hundred twenty-two thousand, one hundred two".