2211233131312 has 40 divisors (see below), whose sum is σ = 4537057507056. Its totient is φ = 1040401883136.

The previous prime is 2211233131307. The next prime is 2211233131319. The reversal of 2211233131312 is 2131313321122.

It is a super-2 number, since 2×2211233131312² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2211233131319) 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, 899103 + ... + 2287105.

Almost surely, 2^{2211233131312} is an apocalyptic number.

It is an amenable number.

2211233131312 is an abundant number, since it is smaller than the sum of its proper divisors (2325824375744).

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

2211233131312 is a wasteful number, since it uses less digits than its factorization.

2211233131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393885 (or 1393879 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

Adding to 2211233131312 its reverse (2131313321122), we get a palindrome (4342546452434).

The spelling of 2211233131312 in words is "two trillion, two hundred eleven billion, two hundred thirty-three million, one hundred thirty-one thousand, three hundred twelve".