102221000220212 has 12 divisors (see below), whose sum is σ = 178982055007140. Its totient is φ = 51083270218176.

The previous prime is 102221000220181. The next prime is 102221000220221. The reversal of 102221000220212 is 212022000122201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28244590510096 + 73976409710116 = 5314564^2 + 8600954^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6807464537 + ... + 6807479552.

It is an arithmetic number, because the mean of its divisors is an integer number (14915171250595).

Almost surely, 2^{102221000220212} is an apocalyptic number.

It is an amenable number.

102221000220212 is a deficient number, since it is larger than the sum of its proper divisors (76761054786928).

102221000220212 is a wasteful number, since it uses less digits than its factorization.

102221000220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13614945970 (or 13614945968 counting only the distinct ones).

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

Adding to 102221000220212 its reverse (212022000122201), we get a palindrome (314243000342413).

The spelling of 102221000220212 in words is "one hundred two trillion, two hundred twenty-one billion, two hundred twenty thousand, two hundred twelve".