122678712 has 80 divisors (see below), whose sum is σ = 370071240. Its totient is φ = 37744704.

The previous prime is 122678707. The next prime is 122678761. The reversal of 122678712 is 217876221.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1143 + ... + 15705.

Almost surely, 2^122678712 is an apocalyptic number.

122678712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122678712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185035620).

122678712 is an abundant number, since it is smaller than the sum of its proper divisors (247392528).

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

122678712 is a wasteful number, since it uses less digits than its factorization.

122678712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14594 (or 14581 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 122678712 is about 11076.0422534405. The cubic root of 122678712 is about 496.8855905183.

The spelling of 122678712 in words is "one hundred twenty-two million, six hundred seventy-eight thousand, seven hundred twelve".