1122855102 has 32 divisors (see below), whose sum is σ = 2504973600. Its totient is φ = 372824064.

The previous prime is 1122855091. The next prime is 1122855109. The reversal of 1122855102 is 2015582211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122855109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26577 + ... + 54332.

It is an arithmetic number, because the mean of its divisors is an integer number (78280425).

Almost surely, 2^1122855102 is an apocalyptic number.

1122855102 is an abundant number, since it is smaller than the sum of its proper divisors (1382118498).

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

1122855102 is a wasteful number, since it uses less digits than its factorization.

1122855102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81177 (or 81171 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 1122855102 is about 33509.0301560639. The cubic root of 1122855102 is about 1039.3805180329.

The spelling of 1122855102 in words is "one billion, one hundred twenty-two million, eight hundred fifty-five thousand, one hundred two".