22311097 has 4 divisors (see below), whose sum is σ = 22435920. Its totient is φ = 22186276.

The previous prime is 22311083. The next prime is 22311131. The reversal of 22311097 is 79011322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22311097 is a prime.

It is a super-3 number, since 3×22311097³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22311007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62143 + ... + 62500.

It is an arithmetic number, because the mean of its divisors is an integer number (5608980).

Almost surely, 2^22311097 is an apocalyptic number.

It is an amenable number.

22311097 is a deficient number, since it is larger than the sum of its proper divisors (124823).

22311097 is a wasteful number, since it uses less digits than its factorization.

22311097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124822.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 22311097 is about 4723.4623953198. The cubic root of 22311097 is about 281.5185226747.

The spelling of 22311097 in words is "twenty-two million, three hundred eleven thousand, ninety-seven".