202221001202212 has 6 divisors (see below), whose sum is σ = 353886752103878. Its totient is φ = 101110500601104.

The previous prime is 202221001202201. The next prime is 202221001202219. The reversal of 202221001202212 is 212202100122202.

It can be written as a sum of positive squares in only one way, i.e., 136797913092096 + 65423088110116 = 11696064^2 + 8088454^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202221001202212.

It is not an unprimeable number, because it can be changed into a prime (202221001202219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25277625150273 + ... + 25277625150280.

Almost surely, 2^{202221001202212} is an apocalyptic number.

It is an amenable number.

202221001202212 is a deficient number, since it is larger than the sum of its proper divisors (151665750901666).

202221001202212 is a wasteful number, since it uses less digits than its factorization.

202221001202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50555250300557 (or 50555250300555 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202221001202212 its reverse (212202100122202), we get a palindrome (414423101324414).

The spelling of 202221001202212 in words is "two hundred two trillion, two hundred twenty-one billion, one million, two hundred two thousand, two hundred twelve".