222212222021122 has 8 divisors (see below), whose sum is σ = 333393727374972. Its totient is φ = 111080979562800.

The previous prime is 222212222021113. The next prime is 222212222021123. The reversal of 222212222021122 is 221120222212222.

It can be written as a sum of positive squares in 2 ways, for example, as 215056388369601 + 7155833651521 = 14664801^2 + 2675039^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×222212222021122² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222212222021123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12565712829 + ... + 12565730512.

Almost surely, 2^{222212222021122} is an apocalyptic number.

222212222021122 is a deficient number, since it is larger than the sum of its proper divisors (111181505353850).

222212222021122 is a wasteful number, since it uses less digits than its factorization.

222212222021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25131447764.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 222212222021122 its reverse (221120222212222), we get a palindrome (443332444233344).

The spelling of 222212222021122 in words is "two hundred twenty-two trillion, two hundred twelve billion, two hundred twenty-two million, twenty-one thousand, one hundred twenty-two".