122452020 has 96 divisors (see below), whose sum is σ = 403401600. Its totient is φ = 30730752.

The previous prime is 122452013. The next prime is 122452021. The reversal of 122452020 is 20254221.

122452020 is a `hidden beast` number, since 122 + 4 + 520 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122451984 and 122452002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122452021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2511 + ... + 15849.

It is an arithmetic number, because the mean of its divisors is an integer number (4202100).

Almost surely, 2^122452020 is an apocalyptic number.

122452020 is a gapful number since it is divisible by the number (10) 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 122452020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201700800).

122452020 is an abundant number, since it is smaller than the sum of its proper divisors (280949580).

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

122452020 is a wasteful number, since it uses less digits than its factorization.

122452020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13374 (or 13366 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 122452020 is about 11065.8040828491. The cubic root of 122452020 is about 496.5793449375.

The spelling of 122452020 in words is "one hundred twenty-two million, four hundred fifty-two thousand, twenty".