221020222002212 has 12 divisors (see below), whose sum is σ = 386785530867120. Its totient is φ = 110510070325896.

The previous prime is 221020222002199. The next prime is 221020222002221. The reversal of 221020222002212 is 212200222020122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4365383 + ... + 21473169.

It is an arithmetic number, because the mean of its divisors is an integer number (32232127572260).

Almost surely, 2^{221020222002212} is an apocalyptic number.

It is an amenable number.

221020222002212 is a deficient number, since it is larger than the sum of its proper divisors (165765308864908).

221020222002212 is a wasteful number, since it uses less digits than its factorization.

221020222002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20337610 (or 20337608 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 221020222002212 its reverse (212200222020122), we get a palindrome (433220444022334).

The spelling of 221020222002212 in words is "two hundred twenty-one trillion, twenty billion, two hundred twenty-two million, two thousand, two hundred twelve".