222202121202212 has 6 divisors (see below), whose sum is σ = 388853712103878. Its totient is φ = 111101060601104.

The previous prime is 222202121202203. The next prime is 222202121202227. The reversal of 222202121202212 is 212202121202222.

It can be written as a sum of positive squares in only one way, i.e., 187065963966436 + 35136157235776 = 13677206^2 + 5927576^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27775265150273 + ... + 27775265150280.

It is an arithmetic number, because the mean of its divisors is an integer number (64808952017313).

Almost surely, 2^{222202121202212} is an apocalyptic number.

It is an amenable number.

222202121202212 is a deficient number, since it is larger than the sum of its proper divisors (166651590901666).

222202121202212 is a wasteful number, since it uses less digits than its factorization.

222202121202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55550530300557 (or 55550530300555 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 222202121202212 its reverse (212202121202222), we get a palindrome (434404242404434).

The spelling of 222202121202212 in words is "two hundred twenty-two trillion, two hundred two billion, one hundred twenty-one million, two hundred two thousand, two hundred twelve".