222202002121012 has 6 divisors (see below), whose sum is σ = 388853503711778. Its totient is φ = 111101001060504.

The previous prime is 222202002120977. The next prime is 222202002121049. The reversal of 222202002121012 is 210121200202222.

It can be written as a sum of positive squares in only one way, i.e., 175971739208356 + 46230262912656 = 13265434^2 + 6799284^2 .

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, 27775250265123 + ... + 27775250265130.

Almost surely, 2^{222202002121012} is an apocalyptic number.

It is an amenable number.

222202002121012 is a deficient number, since it is larger than the sum of its proper divisors (166651501590766).

222202002121012 is a wasteful number, since it uses less digits than its factorization.

222202002121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55550500530257 (or 55550500530255 counting only the distinct ones).

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

Adding to 222202002121012 its reverse (210121200202222), we get a palindrome (432323202323234).

The spelling of 222202002121012 in words is "two hundred twenty-two trillion, two hundred two billion, two million, one hundred twenty-one thousand, twelve".