202111982 has 8 divisors (see below), whose sum is σ = 311361816. Its totient is φ = 98324712.

The previous prime is 202111981. The next prime is 202112003. The reversal of 202111982 is 289111202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202111981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1365548 + ... + 1365695.

It is an arithmetic number, because the mean of its divisors is an integer number (38920227).

Almost surely, 2^202111982 is an apocalyptic number.

202111982 is a deficient number, since it is larger than the sum of its proper divisors (109249834).

202111982 is a wasteful number, since it uses less digits than its factorization.

202111982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731282.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 202111982 is about 14216.6093707325. The cubic root of 202111982 is about 586.8548349713.

The spelling of 202111982 in words is "two hundred two million, one hundred eleven thousand, nine hundred eighty-two".