31000332102222 has 16 divisors (see below), whose sum is σ = 70857901948032. Its totient is φ = 8857237743480.

The previous prime is 31000332102197. The next prime is 31000332102241. The reversal of 31000332102222 is 22220123300013.

It is a happy number.

It is a super-2 number, since 2×31000332102222² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369051572604 + ... + 369051572687.

It is an arithmetic number, because the mean of its divisors is an integer number (4428618871752).

Almost surely, 2^{31000332102222} is an apocalyptic number.

31000332102222 is an abundant number, since it is smaller than the sum of its proper divisors (39857569845810).

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

31000332102222 is a wasteful number, since it uses less digits than its factorization.

31000332102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738103145303.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31000332102222 its reverse (22220123300013), we get a palindrome (53220455402235).

The spelling of 31000332102222 in words is "thirty-one trillion, three hundred thirty-two million, one hundred two thousand, two hundred twenty-two".