420232421253222 has 96 divisors (see below), whose sum is σ = 966269001297600. Its totient is φ = 131535962357760.

The previous prime is 420232421253199. The next prime is 420232421253301. The reversal of 420232421253222 is 222352124232024.

420232421253222 is a `hidden beast` number, since 4 + 2 + 0 + 2 + 3 + 2 + 421 + 2 + 5 + 3 + 222 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1212853318 + ... + 1213199750.

It is an arithmetic number, because the mean of its divisors is an integer number (10065302096850).

Almost surely, 2^{420232421253222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420232421253222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483134500648800).

420232421253222 is an abundant number, since it is smaller than the sum of its proper divisors (546036580044378).

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

420232421253222 is a wasteful number, since it uses less digits than its factorization.

420232421253222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355518 (or 355515 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

Adding to 420232421253222 its reverse (222352124232024), we get a palindrome (642584545485246).

The spelling of 420232421253222 in words is "four hundred twenty trillion, two hundred thirty-two billion, four hundred twenty-one million, two hundred fifty-three thousand, two hundred twenty-two".