122211288 has 32 divisors (see below), whose sum is σ = 339476400. Its totient is φ = 40737024.

The previous prime is 122211281. The next prime is 122211293. The reversal of 122211288 is 882112221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122211281) 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, 282681 + ... + 283112.

Almost surely, 2^122211288 is an apocalyptic number.

122211288 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

122211288 is an abundant number, since it is smaller than the sum of its proper divisors (217265112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122211288 is a wasteful number, since it uses less digits than its factorization.

122211288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565808 (or 565798 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 122211288 is about 11054.9214379841. The cubic root of 122211288 is about 496.2537181820.

The spelling of 122211288 in words is "one hundred twenty-two million, two hundred eleven thousand, two hundred eighty-eight".