122463255420 has 216 divisors, whose sum is σ = 409507425600. Its totient is φ = 29601158400.

The previous prime is 122463255401. The next prime is 122463255427. The reversal of 122463255420 is 24552364221.

122463255420 is a `hidden beast` number, since 1 + 2 + 24 + 63 + 2 + 554 + 20 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122463255427) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7593165 + ... + 7609275.

Almost surely, 2^122463255420 is an apocalyptic number.

122463255420 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 122463255420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204753712800).

122463255420 is an abundant number, since it is smaller than the sum of its proper divisors (287044170180).

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

122463255420 is a wasteful number, since it uses less digits than its factorization.

122463255420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16497 (or 16481 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 122463255420 in words is "one hundred twenty-two billion, four hundred sixty-three million, two hundred fifty-five thousand, four hundred twenty".