222001222121222 has 16 divisors (see below), whose sum is σ = 339285455853120. Its totient is φ = 108906077197632.

The previous prime is 222001222121221. The next prime is 222001222121243. The reversal of 222001222121222 is 222121222100222.

It is a super-2 number, since 2×222001222121222² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222001222121221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79266554 + ... + 82019442.

It is an arithmetic number, because the mean of its divisors is an integer number (21205340990820).

Almost surely, 2^{222001222121222} is an apocalyptic number.

222001222121222 is a deficient number, since it is larger than the sum of its proper divisors (117284233731898).

222001222121222 is a wasteful number, since it uses less digits than its factorization.

222001222121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3513727.

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

Adding to 222001222121222 its reverse (222121222100222), we get a palindrome (444122444221444).

The spelling of 222001222121222 in words is "two hundred twenty-two trillion, one billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty-two".