22120761 has 16 divisors (see below), whose sum is σ = 31901184. Its totient is φ = 13553664.

The previous prime is 22120759. The next prime is 22120793. The reversal of 22120761 is 16702122.

It is not a de Polignac number, because 22120761 - 2¹ = 22120759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22120741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8920 + ... + 11126.

It is an arithmetic number, because the mean of its divisors is an integer number (1993824).

Almost surely, 2^22120761 is an apocalyptic number.

It is an amenable number.

22120761 is a deficient number, since it is larger than the sum of its proper divisors (9780423).

22120761 is a wasteful number, since it uses less digits than its factorization.

22120761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 22120761 is about 4703.2713083555. The cubic root of 22120761 is about 280.7156903688.

Adding to 22120761 its reverse (16702122), we get a palindrome (38822883).

The spelling of 22120761 in words is "twenty-two million, one hundred twenty thousand, seven hundred sixty-one".