781322010220112 has 80 divisors (see below), whose sum is σ = 1600385274453504. Its totient is φ = 369022709952000.

The previous prime is 781322010220061. The next prime is 781322010220127. The reversal of 781322010220112 is 211022010223187.

It is a super-2 number, since 2×781322010220112² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94600223 + ... + 102527294.

Almost surely, 2^{781322010220112} is an apocalyptic number.

It is an amenable number.

781322010220112 is an abundant number, since it is smaller than the sum of its proper divisors (819063264233392).

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

781322010220112 is a wasteful number, since it uses less digits than its factorization.

781322010220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197127748 (or 197127742 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

Adding to 781322010220112 its reverse (211022010223187), we get a palindrome (992344020443299).

The spelling of 781322010220112 in words is "seven hundred eighty-one trillion, three hundred twenty-two billion, ten million, two hundred twenty thousand, one hundred twelve".