31222010220000 has 240 divisors, whose sum is σ = 105718135767552. Its totient is φ = 8057292480000.

The previous prime is 31222010219963. The next prime is 31222010220013. The reversal of 31222010220000 is 2201022213.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6533014 + ... + 10253013.

Almost surely, 2^{31222010220000} is an apocalyptic number.

31222010220000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31222010220000 is an abundant number, since it is smaller than the sum of its proper divisors (74496125547552).

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

31222010220000 is a wasteful number, since it uses less digits than its factorization.

31222010220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16786091 (or 16786068 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 31222010220000 its reverse (2201022213), we get a palindrome (31224211242213).

The spelling of 31222010220000 in words is "thirty-one trillion, two hundred twenty-two billion, ten million, two hundred twenty thousand".