2122211986 has 8 divisors (see below), whose sum is σ = 3192186240. Its totient is φ = 1058149908.

The previous prime is 2122211963. The next prime is 2122211989. The reversal of 2122211986 is 6891122212.

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

It is not an unprimeable number, because it can be changed into a prime (2122211989) 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, 1477146 + ... + 1478581.

It is an arithmetic number, because the mean of its divisors is an integer number (399023280).

Almost surely, 2^2122211986 is an apocalyptic number.

2122211986 is a deficient number, since it is larger than the sum of its proper divisors (1069974254).

2122211986 is a wasteful number, since it uses less digits than its factorization.

2122211986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956088.

The product of its digits is 6912, while the sum is 34.

The square root of 2122211986 is about 46067.4721034267. The cubic root of 2122211986 is about 1285.0782928572.

The spelling of 2122211986 in words is "two billion, one hundred twenty-two million, two hundred eleven thousand, nine hundred eighty-six".