222200321212 has 48 divisors (see below), whose sum is σ = 416799613440. Its totient is φ = 103345949952.

The previous prime is 222200321143. The next prime is 222200321263. The reversal of 222200321212 is 212123002222.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 222200321212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 798013 + ... + 1039819.

It is an arithmetic number, because the mean of its divisors is an integer number (8683325280).

Almost surely, 2^222200321212 is an apocalyptic number.

It is an amenable number.

222200321212 is a deficient number, since it is larger than the sum of its proper divisors (194599292228).

222200321212 is a wasteful number, since it uses less digits than its factorization.

222200321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242050 (or 242048 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 222200321212 its reverse (212123002222), we get a palindrome (434323323434).

The spelling of 222200321212 in words is "two hundred twenty-two billion, two hundred million, three hundred twenty-one thousand, two hundred twelve".