122115850 has 48 divisors (see below), whose sum is σ = 240698880. Its totient is φ = 45964800.

The previous prime is 122115841. The next prime is 122115859. The reversal of 122115850 is 58511221.

It is an interprime number because it is at equal distance from previous prime (122115841) and next prime (122115859).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (122115859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181114 + ... + 181786.

It is an arithmetic number, because the mean of its divisors is an integer number (5014560).

Almost surely, 2^122115850 is an apocalyptic number.

122115850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122115850 is a deficient number, since it is larger than the sum of its proper divisors (118583030).

122115850 is a wasteful number, since it uses less digits than its factorization.

122115850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 122115850 is about 11050.6040558876. The cubic root of 122115850 is about 496.1245053597.

It can be divided in two parts, 1221 and 15850, that added together give a palindrome (17071).

The spelling of 122115850 in words is "one hundred twenty-two million, one hundred fifteen thousand, eight hundred fifty".