122251470 has 64 divisors (see below), whose sum is σ = 322707456. Its totient is φ = 29393280.

The previous prime is 122251469. The next prime is 122251489. The reversal of 122251470 is 74152221.

It is a self number, because there is not a number n which added to its sum of digits gives 122251470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40452 + ... + 43368.

It is an arithmetic number, because the mean of its divisors is an integer number (5042304).

Almost surely, 2^122251470 is an apocalyptic number.

122251470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122251470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161353728).

122251470 is an abundant number, since it is smaller than the sum of its proper divisors (200455986).

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

122251470 is a wasteful number, since it uses less digits than its factorization.

122251470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 122251470 is about 11056.7386692460. The cubic root of 122251470 is about 496.3081001795.

It can be divided in two parts, 12225 and 1470, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 122251470 in words is "one hundred twenty-two million, two hundred fifty-one thousand, four hundred seventy".