22000222542 has 32 divisors (see below), whose sum is σ = 44604181152. Its totient is φ = 7233467904.

The previous prime is 22000222511. The next prime is 22000222549. The reversal of 22000222542 is 24522200022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000222549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43818 + ... + 214290.

It is an arithmetic number, because the mean of its divisors is an integer number (1393880661).

Almost surely, 2^22000222542 is an apocalyptic number.

22000222542 is an abundant number, since it is smaller than the sum of its proper divisors (22603958610).

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

22000222542 is a wasteful number, since it uses less digits than its factorization.

22000222542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170772.

The product of its (nonzero) digits is 1280, while the sum is 21.

Adding to 22000222542 its reverse (24522200022), we get a palindrome (46522422564).

The spelling of 22000222542 in words is "twenty-two billion, two hundred twenty-two thousand, five hundred forty-two".