221495838202 has 4 divisors (see below), whose sum is σ = 332243757306. Its totient is φ = 110747919100.

The previous prime is 221495838163. The next prime is 221495838217. The reversal of 221495838202 is 202838594122.

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., 159256066761 + 62239771441 = 399069^2 + 249479^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55373959549 + ... + 55373959552.

Almost surely, 2^221495838202 is an apocalyptic number.

221495838202 is a deficient number, since it is larger than the sum of its proper divisors (110747919104).

221495838202 is a wasteful number, since it uses less digits than its factorization.

221495838202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110747919103.

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 221495838202 in words is "two hundred twenty-one billion, four hundred ninety-five million, eight hundred thirty-eight thousand, two hundred two".