551203110122 has 32 divisors (see below), whose sum is σ = 986193107712. Its totient is φ = 225915490944.

The previous prime is 551203110119. The next prime is 551203110127. The reversal of 551203110122 is 221011302155.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (551203110127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1535588 + ... + 1860224.

It is an arithmetic number, because the mean of its divisors is an integer number (30818534616).

Almost surely, 2^551203110122 is an apocalyptic number.

551203110122 is a deficient number, since it is larger than the sum of its proper divisors (434989997590).

551203110122 is a wasteful number, since it uses less digits than its factorization.

551203110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329942.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 551203110122 its reverse (221011302155), we get a palindrome (772214412277).

The spelling of 551203110122 in words is "five hundred fifty-one billion, two hundred three million, one hundred ten thousand, one hundred twenty-two".