122274478100 has 36 divisors (see below), whose sum is σ = 265812104124. Its totient is φ = 48821959680.

The previous prime is 122274478049. The next prime is 122274478121. The reversal of 122274478100 is 1874472221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 23224540816 + 99049937284 = 152396^2 + 314722^2 .

It is a super-3 number, since 3×122274478100³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1041917 + ... + 1153316.

It is an arithmetic number, because the mean of its divisors is an integer number (7383669559).

Almost surely, 2^122274478100 is an apocalyptic number.

122274478100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122274478100 is an abundant number, since it is smaller than the sum of its proper divisors (143537626024).

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

122274478100 is a wasteful number, since it uses less digits than its factorization.

122274478100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195804 (or 2195797 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 38.

The spelling of 122274478100 in words is "one hundred twenty-two billion, two hundred seventy-four million, four hundred seventy-eight thousand, one hundred".