451401222030 has 128 divisors (see below), whose sum is σ = 1213786944000. Its totient is φ = 106510272000.

The previous prime is 451401221939. The next prime is 451401222031. The reversal of 451401222030 is 30222104154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451401222031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1851696 + ... + 2081244.

It is an arithmetic number, because the mean of its divisors is an integer number (9482710500).

Almost surely, 2^451401222030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451401222030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606893472000).

451401222030 is an abundant number, since it is smaller than the sum of its proper divisors (762385721970).

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

451401222030 is a wasteful number, since it uses less digits than its factorization.

451401222030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229730.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 451401222030 its reverse (30222104154), we get a palindrome (481623326184).

The spelling of 451401222030 in words is "four hundred fifty-one billion, four hundred one million, two hundred twenty-two thousand, thirty".