1222087831790 has 16 divisors (see below), whose sum is σ = 2514009254112. Its totient is φ = 419001542304.

The previous prime is 1222087831771. The next prime is 1222087831799. The reversal of 1222087831790 is 971387802221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222087831799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8729198729 + ... + 8729198868.

It is an arithmetic number, because the mean of its divisors is an integer number (157125578382).

Almost surely, 2^{1222087831790} is an apocalyptic number.

1222087831790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222087831790 is an abundant number, since it is smaller than the sum of its proper divisors (1291921422322).

1222087831790 is a wasteful number, since it uses less digits than its factorization.

1222087831790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17458397611.

The product of its (nonzero) digits is 677376, while the sum is 50.

The spelling of 1222087831790 in words is "one trillion, two hundred twenty-two billion, eighty-seven million, eight hundred thirty-one thousand, seven hundred ninety".