2101305666202 has 4 divisors (see below), whose sum is σ = 3151958499306. Its totient is φ = 1050652833100.

The previous prime is 2101305666199. The next prime is 2101305666211. The reversal of 2101305666202 is 2026665031012.

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., 1085324320521 + 1015981345681 = 1041789^2 + 1007959^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525326416549 + ... + 525326416552.

Almost surely, 2^{2101305666202} is an apocalyptic number.

2101305666202 is a deficient number, since it is larger than the sum of its proper divisors (1050652833104).

2101305666202 is a wasteful number, since it uses less digits than its factorization.

2101305666202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050652833103.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 2101305666202 in words is "two trillion, one hundred one billion, three hundred five million, six hundred sixty-six thousand, two hundred two".