222212102202122 has 4 divisors (see below), whose sum is σ = 333318153303186. Its totient is φ = 111106051101060.

The previous prime is 222212102202029. The next prime is 222212102202127. The reversal of 222212102202122 is 221202201212222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 209446280563081 + 12765821639041 = 14472259^2 + 3572929^2 .

It is not an unprimeable number, because it can be changed into a prime (222212102202127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55553025550529 + ... + 55553025550532.

Almost surely, 2^{222212102202122} is an apocalyptic number.

222212102202122 is a deficient number, since it is larger than the sum of its proper divisors (111106051101064).

222212102202122 is a wasteful number, since it uses less digits than its factorization.

222212102202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111106051101063.

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

Adding to 222212102202122 its reverse (221202201212222), we get a palindrome (443414303414344).

The spelling of 222212102202122 in words is "two hundred twenty-two trillion, two hundred twelve billion, one hundred two million, two hundred two thousand, one hundred twenty-two".