221020002212 has 12 divisors (see below), whose sum is σ = 387613240560. Its totient is φ = 110273362056.

The previous prime is 221020002211. The next prime is 221020002239. The reversal of 221020002212 is 212200020122.

It is not an unprimeable number, because it can be changed into a prime (221020002211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59157662 + ... + 59161397.

It is an arithmetic number, because the mean of its divisors is an integer number (32301103380).

Almost surely, 2^221020002212 is an apocalyptic number.

It is an amenable number.

221020002212 is a deficient number, since it is larger than the sum of its proper divisors (166593238348).

221020002212 is a wasteful number, since it uses less digits than its factorization.

221020002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118319530 (or 118319528 counting only the distinct ones).

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

Adding to 221020002212 its reverse (212200020122), we get a palindrome (433220022334).

The spelling of 221020002212 in words is "two hundred twenty-one billion, twenty million, two thousand, two hundred twelve".