22221240887442 has 16 divisors (see below), whose sum is σ = 45476027863200. Its totient is φ = 7234822614432.

The previous prime is 22221240887441. The next prime is 22221240887471. The reversal of 22221240887442 is 24478804212222.

It is a junction number, because it is equal to n+sod(n) for n = 22221240887391 and 22221240887400.

It is not an unprimeable number, because it can be changed into a prime (22221240887441) 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, 43064420067 + ... + 43064420582.

It is an arithmetic number, because the mean of its divisors is an integer number (2842251741450).

Almost surely, 2^{22221240887442} is an apocalyptic number.

22221240887442 is an abundant number, since it is smaller than the sum of its proper divisors (23254786975758).

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

22221240887442 is a wasteful number, since it uses less digits than its factorization.

22221240887442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86128840697.

The product of its (nonzero) digits is 1835008, while the sum is 48.

The spelling of 22221240887442 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred forty million, eight hundred eighty-seven thousand, four hundred forty-two".