221220222002212 has 24 divisors (see below), whose sum is σ = 387669128243040. Its totient is φ = 110457694270080.

The previous prime is 221220222002161. The next prime is 221220222002237. The reversal of 221220222002212 is 212200222022122.

221220222002212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 976387 + ... + 21056917.

It is an arithmetic number, because the mean of its divisors is an integer number (16152880343460).

Almost surely, 2^{221220222002212} is an apocalyptic number.

It is an amenable number.

221220222002212 is a deficient number, since it is larger than the sum of its proper divisors (166448906240828).

221220222002212 is a wasteful number, since it uses less digits than its factorization.

221220222002212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20084331 (or 20084329 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 221220222002212 its reverse (212200222022122), we get a palindrome (433420444024334).

The spelling of 221220222002212 in words is "two hundred twenty-one trillion, two hundred twenty billion, two hundred twenty-two million, two thousand, two hundred twelve".