1555545222122 has 32 divisors (see below), whose sum is σ = 2422316854080. Its totient is φ = 748300654080.

The previous prime is 1555545222109. The next prime is 1555545222197. The reversal of 1555545222122 is 2212225455551.

It is a self number, because there is not a number n which added to its sum of digits gives 1555545222122.

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, 19125113 + ... + 19206275.

It is an arithmetic number, because the mean of its divisors is an integer number (75697401690).

Almost surely, 2^{1555545222122} is an apocalyptic number.

1555545222122 is a deficient number, since it is larger than the sum of its proper divisors (866771631958).

1555545222122 is a wasteful number, since it uses less digits than its factorization.

1555545222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82358.

The product of its digits is 400000, while the sum is 41.

The spelling of 1555545222122 in words is "one trillion, five hundred fifty-five billion, five hundred forty-five million, two hundred twenty-two thousand, one hundred twenty-two".