221022200012 has 12 divisors (see below), whose sum is σ = 386792192640. Its totient is φ = 110510144976.

The previous prime is 221022199991. The next prime is 221022200039. The reversal of 221022200012 is 210002220122.

It is a self number, because there is not a number n which added to its sum of digits gives 221022200012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647414 + ... + 928002.

It is an arithmetic number, because the mean of its divisors is an integer number (32232682720).

Almost surely, 2^221022200012 is an apocalyptic number.

It is an amenable number.

221022200012 is a deficient number, since it is larger than the sum of its proper divisors (165769992628).

221022200012 is a wasteful number, since it uses less digits than its factorization.

221022200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477520 (or 477518 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 221022200012 its reverse (210002220122), we get a palindrome (431024420134).

The spelling of 221022200012 in words is "two hundred twenty-one billion, twenty-two million, two hundred thousand, twelve".