1122420125 has 16 divisors (see below), whose sum is σ = 1461687552. Its totient is φ = 858893200.

The previous prime is 1122420097. The next prime is 1122420137. The reversal of 1122420125 is 5210242211.

It is a de Polignac number, because none of the positive numbers 2^k-1122420125 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122420097 and 1122420106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192329 + ... + 198078.

It is an arithmetic number, because the mean of its divisors is an integer number (91355472).

Almost surely, 2^1122420125 is an apocalyptic number.

It is an amenable number.

1122420125 is a deficient number, since it is larger than the sum of its proper divisors (339267427).

1122420125 is an equidigital number, since it uses as much as digits as its factorization.

1122420125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390445 (or 390435 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1122420125 is about 33502.5390828815. The cubic root of 1122420125 is about 1039.2462872934.

Adding to 1122420125 its reverse (5210242211), we get a palindrome (6332662336).

The spelling of 1122420125 in words is "one billion, one hundred twenty-two million, four hundred twenty thousand, one hundred twenty-five".