31023220223222 has 8 divisors (see below), whose sum is σ = 46534868971200. Its totient is φ = 15511597232824.

The previous prime is 31023220223213. The next prime is 31023220223329. The reversal of 31023220223222 is 22232202232013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×31023220223222² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31023220223191 and 31023220223200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3077222 + ... + 8456697.

It is an arithmetic number, because the mean of its divisors is an integer number (5816858621400).

Almost surely, 2^{31023220223222} is an apocalyptic number.

31023220223222 is a deficient number, since it is larger than the sum of its proper divisors (15511648747978).

31023220223222 is a wasteful number, since it uses less digits than its factorization.

31023220223222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12878790.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 31023220223222 its reverse (22232202232013), we get a palindrome (53255422455235).

The spelling of 31023220223222 in words is "thirty-one trillion, twenty-three billion, two hundred twenty million, two hundred twenty-three thousand, two hundred twenty-two".