2100212100986 has 4 divisors (see below), whose sum is σ = 3150318151482. Its totient is φ = 1050106050492.

The previous prime is 2100212100967. The next prime is 2100212101051. The reversal of 2100212100986 is 6890012120012.

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., 1502999988961 + 597212112025 = 1225969^2 + 772795^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525053025245 + ... + 525053025248.

Almost surely, 2^{2100212100986} is an apocalyptic number.

2100212100986 is a deficient number, since it is larger than the sum of its proper divisors (1050106050496).

2100212100986 is a wasteful number, since it uses less digits than its factorization.

2100212100986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050106050495.

The product of its (nonzero) digits is 3456, while the sum is 32.

Adding to 2100212100986 its reverse (6890012120012), we get a palindrome (8990224220998).

The spelling of 2100212100986 in words is "two trillion, one hundred billion, two hundred twelve million, one hundred thousand, nine hundred eighty-six".