2221222123131 has 16 divisors (see below), whose sum is σ = 3299610428928. Its totient is φ = 1317552773600.

The previous prime is 2221222123129. The next prime is 2221222123151. The reversal of 2221222123131 is 1313212221222.

It is a cyclic number.

It is not a de Polignac number, because 2221222123131 - 2¹ = 2221222123129 is a prime.

It is a super-2 number, since 2×2221222123131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2221222123111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716059740 + ... + 716062841.

It is an arithmetic number, because the mean of its divisors is an integer number (206225651808).

Almost surely, 2^{2221222123131} is an apocalyptic number.

2221222123131 is a deficient number, since it is larger than the sum of its proper divisors (1078388305797).

2221222123131 is a wasteful number, since it uses less digits than its factorization.

2221222123131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432122642.

The product of its digits is 1152, while the sum is 24.

Adding to 2221222123131 its reverse (1313212221222), we get a palindrome (3534434344353).

The spelling of 2221222123131 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-two million, one hundred twenty-three thousand, one hundred thirty-one".