2122102001986 has 4 divisors (see below), whose sum is σ = 3183153002982. Its totient is φ = 1061051000992.

The previous prime is 2122102001983. The next prime is 2122102002001. The reversal of 2122102001986 is 6891002012212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1109198644225 + 1012903357761 = 1053185^2 + 1006431^2 .

It is not an unprimeable number, because it can be changed into a prime (2122102001983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530525500495 + ... + 530525500498.

Almost surely, 2^{2122102001986} is an apocalyptic number.

2122102001986 is a deficient number, since it is larger than the sum of its proper divisors (1061051000996).

2122102001986 is a wasteful number, since it uses less digits than its factorization.

2122102001986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061051000995.

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

The spelling of 2122102001986 in words is "two trillion, one hundred twenty-two billion, one hundred two million, one thousand, nine hundred eighty-six".