22200221120212 has 6 divisors (see below), whose sum is σ = 38850386960378. Its totient is φ = 11100110560104.

The previous prime is 22200221120137. The next prime is 22200221120227. The reversal of 22200221120212 is 21202112200222.

It can be written as a sum of positive squares in only one way, i.e., 21646277333136 + 553943787076 = 4652556^2 + 744274^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22200221120212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775027640023 + ... + 2775027640030.

Almost surely, 2^{22200221120212} is an apocalyptic number.

It is an amenable number.

22200221120212 is a deficient number, since it is larger than the sum of its proper divisors (16650165840166).

22200221120212 is a wasteful number, since it uses less digits than its factorization.

22200221120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550055280057 (or 5550055280055 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22200221120212 its reverse (21202112200222), we get a palindrome (43402333320434).

The spelling of 22200221120212 in words is "twenty-two trillion, two hundred billion, two hundred twenty-one million, one hundred twenty thousand, two hundred twelve".