122157150 has 24 divisors (see below), whose sum is σ = 302950104. Its totient is φ = 32575200.

The previous prime is 122157131. The next prime is 122157151. The reversal of 122157150 is 51751221.

It is a super-2 number, since 2×122157150² = 29844738592245000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122157150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122157151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 407041 + ... + 407340.

It is an arithmetic number, because the mean of its divisors is an integer number (12622921).

Almost surely, 2^122157150 is an apocalyptic number.

122157150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122157150 is an abundant number, since it is smaller than the sum of its proper divisors (180792954).

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

122157150 is a wasteful number, since it uses less digits than its factorization.

122157150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814396 (or 814391 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 122157150 is about 11052.4725740442. The cubic root of 122157150 is about 496.1804293930.

The spelling of 122157150 in words is "one hundred twenty-two million, one hundred fifty-seven thousand, one hundred fifty".