1222166713840 has 40 divisors (see below), whose sum is σ = 2910843412848. Its totient is φ = 476943106560.

The previous prime is 1222166713813. The next prime is 1222166713909. The reversal of 1222166713840 is 483176612221.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186302622 + ... + 186309181.

Almost surely, 2^{1222166713840} is an apocalyptic number.

1222166713840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222166713840 is an abundant number, since it is smaller than the sum of its proper divisors (1688676699008).

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

1222166713840 is a wasteful number, since it uses less digits than its factorization.

1222166713840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372611857 (or 372611851 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 1222166713840 in words is "one trillion, two hundred twenty-two billion, one hundred sixty-six million, seven hundred thirteen thousand, eight hundred forty".