222212222101 has 2 divisors, whose sum is σ = 222212222102. Its totient is φ = 222212222100.

The previous prime is 222212222087. The next prime is 222212222159. The reversal of 222212222101 is 101222212222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210473583076 + 11738639025 = 458774^2 + 108345^2 .

It is a cyclic number.

It is not a de Polignac number, because 222212222101 - 2⁵ = 222212222069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222212222801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111106111050 + 111106111051.

It is an arithmetic number, because the mean of its divisors is an integer number (111106111051).

Almost surely, 2^222212222101 is an apocalyptic number.

It is an amenable number.

222212222101 is a deficient number, since it is larger than the sum of its proper divisors (1).

222212222101 is an equidigital number, since it uses as much as digits as its factorization.

222212222101 is an odious number, because the sum of its binary digits is odd.

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

Adding to 222212222101 its reverse (101222212222), we get a palindrome (323434434323).

It can be divided in two parts, 222212222 and 101, that multiplied together give a palindrome (22443434422).

The spelling of 222212222101 in words is "two hundred twenty-two billion, two hundred twelve million, two hundred twenty-two thousand, one hundred one".