125222420000 has 60 divisors (see below), whose sum is σ = 308065985766. Its totient is φ = 50088960000.

The previous prime is 125222419967. The next prime is 125222420083. The reversal of 125222420000 is 24222521.

It can be written as a sum of positive squares in 5 ways, for example, as 39488656 + 125182931344 = 6284^2 + 353812^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3110561 + ... + 3150560.

Almost surely, 2^125222420000 is an apocalyptic number.

125222420000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125222420000 is an abundant number, since it is smaller than the sum of its proper divisors (182843565766).

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

125222420000 is an frugal number, since it uses more digits than its factorization.

125222420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6261151 (or 6261128 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 125222420000 its reverse (24222521), we get a palindrome (125246642521).

The spelling of 125222420000 in words is "one hundred twenty-five billion, two hundred twenty-two million, four hundred twenty thousand".