122551505052 has 12 divisors (see below), whose sum is σ = 285953511816. Its totient is φ = 40850501680.

The previous prime is 122551505051. The next prime is 122551505081. The reversal of 122551505052 is 250505155221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122551505051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5106312699 + ... + 5106312722.

It is an arithmetic number, because the mean of its divisors is an integer number (23829459318).

Almost surely, 2^122551505052 is an apocalyptic number.

122551505052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122551505052 is an abundant number, since it is smaller than the sum of its proper divisors (163402006764).

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

122551505052 is a wasteful number, since it uses less digits than its factorization.

122551505052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10212625428 (or 10212625426 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 33.

The spelling of 122551505052 in words is "one hundred twenty-two billion, five hundred fifty-one million, five hundred five thousand, fifty-two".