2311222212222 has 32 divisors (see below), whose sum is σ = 5763047595264. Its totient is φ = 600317457600.

The previous prime is 2311222212203. The next prime is 2311222212253. The reversal of 2311222212222 is 2222122221132.

It is a super-2 number, since 2×2311222212222² (a number of 26 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2311222212192 and 2311222212201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2501322279 + ... + 2501323202.

It is an arithmetic number, because the mean of its divisors is an integer number (180095237352).

Almost surely, 2^{2311222212222} is an apocalyptic number.

2311222212222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2311222212222 is an abundant number, since it is smaller than the sum of its proper divisors (3451825383042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2311222212222 is a wasteful number, since it uses less digits than its factorization.

2311222212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5002645504.

The product of its digits is 1536, while the sum is 24.

Adding to 2311222212222 its reverse (2222122221132), we get a palindrome (4533344433354).

The spelling of 2311222212222 in words is "two trillion, three hundred eleven billion, two hundred twenty-two million, two hundred twelve thousand, two hundred twenty-two".