131222322033420 has 48 divisors (see below), whose sum is σ = 367423125941088. Its totient is φ = 34992559756800.

The previous prime is 131222322033419. The next prime is 131222322033443. The reversal of 131222322033420 is 24330223222131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42506832 + ... + 45489288.

It is an arithmetic number, because the mean of its divisors is an integer number (7654648457106).

Almost surely, 2^{131222322033420} is an apocalyptic number.

131222322033420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131222322033420 is an abundant number, since it is smaller than the sum of its proper divisors (236200803907668).

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

131222322033420 is a wasteful number, since it uses less digits than its factorization.

131222322033420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715770 (or 3715768 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 131222322033420 its reverse (24330223222131), we get a palindrome (155552545255551).

The spelling of 131222322033420 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, three hundred twenty-two million, thirty-three thousand, four hundred twenty".