221200202012012 has 12 divisors (see below), whose sum is σ = 400448641573680. Its totient is φ = 106786304419536.

The previous prime is 221200202011979. The next prime is 221200202012029. The reversal of 221200202012012 is 210210202002122.

It is a happy number.

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, 953449146488 + ... + 953449146719.

It is an arithmetic number, because the mean of its divisors is an integer number (33370720131140).

Almost surely, 2^{221200202012012} is an apocalyptic number.

It is an amenable number.

221200202012012 is a deficient number, since it is larger than the sum of its proper divisors (179248439561668).

221200202012012 is a wasteful number, since it uses less digits than its factorization.

221200202012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906898293240 (or 1906898293238 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221200202012012 its reverse (210210202002122), we get a palindrome (431410404014134).

The spelling of 221200202012012 in words is "two hundred twenty-one trillion, two hundred billion, two hundred two million, twelve thousand, twelve".