118211970 has 32 divisors (see below), whose sum is σ = 285148800. Its totient is φ = 31363200.

The previous prime is 118211969. The next prime is 118212007. The reversal of 118211970 is 79112811.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3931 + ... + 15870.

It is an arithmetic number, because the mean of its divisors is an integer number (8910900).

Almost surely, 2^118211970 is an apocalyptic number.

118211970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118211970 is an abundant number, since it is smaller than the sum of its proper divisors (166936830).

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

118211970 is a wasteful number, since it uses less digits than its factorization.

118211970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20010.

The product of its (nonzero) digits is 1008, while the sum is 30.

The square root of 118211970 is about 10872.5328235881. The cubic root of 118211970 is about 490.7803337655.

It can be divided in two parts, 1182 and 11970, that multiplied together give a triangular number (14148540 = T₅₃₁₉).

The spelling of 118211970 in words is "one hundred eighteen million, two hundred eleven thousand, nine hundred seventy".