122111197 has 8 divisors (see below), whose sum is σ = 131597816. Its totient is φ = 112637952.

The previous prime is 122111189. The next prime is 122111219. The reversal of 122111197 is 791111221.

It can be written as a sum of positive squares in 4 ways, for example, as 3606201 + 118504996 = 1899^2 + 10886^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122111197 - 2³ = 122111189 is a prime.

It is a super-2 number, since 2×122111197² = 29822288865545618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122111597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23893 + ... + 28549.

It is an arithmetic number, because the mean of its divisors is an integer number (16449727).

Almost surely, 2^122111197 is an apocalyptic number.

It is an amenable number.

122111197 is a deficient number, since it is larger than the sum of its proper divisors (9486619).

122111197 is a wasteful number, since it uses less digits than its factorization.

122111197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6687.

The product of its digits is 252, while the sum is 25.

The square root of 122111197 is about 11050.3935224045. The cubic root of 122111197 is about 496.1182039755.

It can be divided in two parts, 12 and 2111197, that added together give a square (2111209 = 1453²).

The spelling of 122111197 in words is "one hundred twenty-two million, one hundred eleven thousand, one hundred ninety-seven".