122111806 has 8 divisors (see below), whose sum is σ = 183277800. Its totient is φ = 61019208.

The previous prime is 122111791. The next prime is 122111809. The reversal of 122111806 is 608111221.

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

It is a super-2 number, since 2×122111806² = 29822586329163272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122111809) 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, 13981 + ... + 20968.

It is an arithmetic number, because the mean of its divisors is an integer number (22909725).

Almost surely, 2^122111806 is an apocalyptic number.

122111806 is a deficient number, since it is larger than the sum of its proper divisors (61165994).

122111806 is a wasteful number, since it uses less digits than its factorization.

122111806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36698.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 122111806 is about 11050.4210779499. The cubic root of 122111806 is about 496.1190287306.

The spelling of 122111806 in words is "one hundred twenty-two million, one hundred eleven thousand, eight hundred six".