22307220742 has 4 divisors (see below), whose sum is σ = 33460831116. Its totient is φ = 11153610370.

The previous prime is 22307220737. The next prime is 22307220743. The reversal of 22307220742 is 24702270322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24702270322 = 2 ⋅12351135161.

It is a super-3 number, since 3×22307220742³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22307220743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5576805184 + ... + 5576805187.

It is an arithmetic number, because the mean of its divisors is an integer number (8365207779).

Almost surely, 2^22307220742 is an apocalyptic number.

22307220742 is a deficient number, since it is larger than the sum of its proper divisors (11153610374).

22307220742 is a wasteful number, since it uses less digits than its factorization.

22307220742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11153610373.

The product of its (nonzero) digits is 18816, while the sum is 31.

It can be divided in two parts, 22307 and 220742, that added together give a square (243049 = 493²).

The spelling of 22307220742 in words is "twenty-two billion, three hundred seven million, two hundred twenty thousand, seven hundred forty-two".