1122201166590 has 160 divisors (see below), whose sum is σ = 3480773243904. Its totient is φ = 254105760960.

The previous prime is 1122201166573. The next prime is 1122201166591. The reversal of 1122201166590 is 956611022211.

1122201166590 is a `hidden beast` number, since 1 + 1 + 2 + 2 + 2 + 0 + 1 + 1 + 66 + 590 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122201166591) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 318166 + ... + 1531545.

Almost surely, 2^{1122201166590} is an apocalyptic number.

1122201166590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122201166590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1740386621952).

1122201166590 is an abundant number, since it is smaller than the sum of its proper divisors (2358572077314).

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

1122201166590 is a wasteful number, since it uses less digits than its factorization.

1122201166590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849844 (or 1849835 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 1122201166590 in words is "one trillion, one hundred twenty-two billion, two hundred one million, one hundred sixty-six thousand, five hundred ninety".