31212102330022 has 8 divisors (see below), whose sum is σ = 46818622947096. Its totient is φ = 15605894680992.

The previous prime is 31212102330007. The next prime is 31212102330077. The reversal of 31212102330022 is 22003320121213.

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

It is a super-2 number, since 2×31212102330022² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31212102329975 and 31212102330002.

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, 77992528 + ... + 78391699.

It is an arithmetic number, because the mean of its divisors is an integer number (5852327868387).

Almost surely, 2^{31212102330022} is an apocalyptic number.

31212102330022 is a deficient number, since it is larger than the sum of its proper divisors (15606520617074).

31212102330022 is a wasteful number, since it uses less digits than its factorization.

31212102330022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156484022.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31212102330022 its reverse (22003320121213), we get a palindrome (53215422451235).

The spelling of 31212102330022 in words is "thirty-one trillion, two hundred twelve billion, one hundred two million, three hundred thirty thousand, twenty-two".