220115700 has 108 divisors (see below), whose sum is σ = 788525920. Its totient is φ = 50310720.

The previous prime is 220115671. The next prime is 220115719. The reversal of 220115700 is 7511022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11170 + ... + 23769.

Almost surely, 2^220115700 is an apocalyptic number.

220115700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220115700 is an abundant number, since it is smaller than the sum of its proper divisors (568410220).

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

220115700 is a wasteful number, since it uses less digits than its factorization.

220115700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34966 (or 34956 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 220115700 is about 14836.2967077367. The cubic root of 220115700 is about 603.7868822549.

Adding to 220115700 its reverse (7511022), we get a palindrome (227626722).

The spelling of 220115700 in words is "two hundred twenty million, one hundred fifteen thousand, seven hundred".