345221225100 has 72 divisors (see below), whose sum is σ = 1109822317520. Its totient is φ = 92058992640.

The previous prime is 345221225093. The next prime is 345221225119. The reversal of 345221225100 is 1522122543.

345221225100 is a `hidden beast` number, since 3 + 4 + 5 + 22 + 122 + 510 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63927157 + ... + 63932556.

Almost surely, 2^345221225100 is an apocalyptic number.

345221225100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

345221225100 is an abundant number, since it is smaller than the sum of its proper divisors (764601092420).

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

345221225100 is a wasteful number, since it uses less digits than its factorization.

345221225100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127859736 (or 127859723 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 345221225100 its reverse (1522122543), we get a palindrome (346743347643).

The spelling of 345221225100 in words is "three hundred forty-five billion, two hundred twenty-one million, two hundred twenty-five thousand, one hundred".