122115700 has 72 divisors (see below), whose sum is σ = 309966272. Its totient is φ = 40884480.

The previous prime is 122115689. The next prime is 122115731. The reversal of 122115700 is 7511221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28072 + ... + 32128.

Almost surely, 2^122115700 is an apocalyptic number.

122115700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122115700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154983136).

122115700 is an abundant number, since it is smaller than the sum of its proper divisors (187850572).

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

122115700 is a wasteful number, since it uses less digits than its factorization.

122115700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4121 (or 4114 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 122115700 is about 11050.5972689262. The cubic root of 122115700 is about 496.1243022228.

Adding to 122115700 its reverse (7511221), we get a palindrome (129626921).

The spelling of 122115700 in words is "one hundred twenty-two million, one hundred fifteen thousand, seven hundred".