31010000222 has 4 divisors (see below), whose sum is σ = 46515000336. Its totient is φ = 15505000110.

The previous prime is 31010000221. The next prime is 31010000227. The reversal of 31010000222 is 22200001013.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22200001013 = 431 ⋅51508123.

It is a super-2 number, since 2×31010000222² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31010000221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7752500054 + ... + 7752500057.

It is an arithmetic number, because the mean of its divisors is an integer number (11628750084).

Almost surely, 2^31010000222 is an apocalyptic number.

31010000222 is a deficient number, since it is larger than the sum of its proper divisors (15505000114).

31010000222 is a wasteful number, since it uses less digits than its factorization.

31010000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15505000113.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 31010000222 its reverse (22200001013), we get a palindrome (53210001235).

The spelling of 31010000222 in words is "thirty-one billion, ten million, two hundred twenty-two", and thus it is an aban number.