311132002222 has 48 divisors (see below), whose sum is σ = 495636054192. Its totient is φ = 146459174400.

The previous prime is 311132002219. The next prime is 311132002229. The reversal of 311132002222 is 222200231113.

It is a super-2 number, since 2×311132002222² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 311132002222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311132002229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80790597 + ... + 80794447.

It is an arithmetic number, because the mean of its divisors is an integer number (10325751129).

Almost surely, 2^311132002222 is an apocalyptic number.

311132002222 is a deficient number, since it is larger than the sum of its proper divisors (184504051970).

311132002222 is a wasteful number, since it uses less digits than its factorization.

311132002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4561 (or 4542 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 311132002222 its reverse (222200231113), we get a palindrome (533332233335).

The spelling of 311132002222 in words is "three hundred eleven billion, one hundred thirty-two million, two thousand, two hundred twenty-two".