2217056669402 has 4 divisors (see below), whose sum is σ = 3325585004106. Its totient is φ = 1108528334700.

The previous prime is 2217056669369. The next prime is 2217056669419. The reversal of 2217056669402 is 2049666507122.

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., 1181158149721 + 1035898519681 = 1086811^2 + 1017791^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554264167349 + ... + 554264167352.

Almost surely, 2^{2217056669402} is an apocalyptic number.

2217056669402 is a deficient number, since it is larger than the sum of its proper divisors (1108528334704).

2217056669402 is a wasteful number, since it uses less digits than its factorization.

2217056669402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108528334703.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 2217056669402 in words is "two trillion, two hundred seventeen billion, fifty-six million, six hundred sixty-nine thousand, four hundred two".