22202242442 has 4 divisors (see below), whose sum is σ = 33303363666. Its totient is φ = 11101121220.

The previous prime is 22202242429. The next prime is 22202242453. The reversal of 22202242442 is 24424220222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24424220222 = 2 ⋅12212110111.

It can be written as a sum of positive squares in only one way, i.e., 22198318081 + 3924361 = 148991^2 + 1981^2 .

It is a super-2 number, since 2×22202242442² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550560609 + ... + 5550560612.

Almost surely, 2^22202242442 is an apocalyptic number.

22202242442 is a deficient number, since it is larger than the sum of its proper divisors (11101121224).

22202242442 is a wasteful number, since it uses less digits than its factorization.

22202242442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11101121223.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 22202242442 its reverse (24424220222), we get a palindrome (46626462664).

The spelling of 22202242442 in words is "twenty-two billion, two hundred two million, two hundred forty-two thousand, four hundred forty-two".