2155223514422 has 48 divisors (see below), whose sum is σ = 3564000276480. Its totient is φ = 976740449520.

The previous prime is 2155223514407. The next prime is 2155223514449. The reversal of 2155223514422 is 2244153225512.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209178923 + ... + 209189225.

It is an arithmetic number, because the mean of its divisors is an integer number (74250005760).

Almost surely, 2^{2155223514422} is an apocalyptic number.

2155223514422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2155223514422 is a deficient number, since it is larger than the sum of its proper divisors (1408776762058).

2155223514422 is a wasteful number, since it uses less digits than its factorization.

2155223514422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12809 (or 12798 counting only the distinct ones).

The product of its digits is 192000, while the sum is 38.

Adding to 2155223514422 its reverse (2244153225512), we get a palindrome (4399376739934).

The spelling of 2155223514422 in words is "two trillion, one hundred fifty-five billion, two hundred twenty-three million, five hundred fourteen thousand, four hundred twenty-two".