1222150425 has 24 divisors (see below), whose sum is σ = 2108478144. Its totient is φ = 623472960.

The previous prime is 1222150421. The next prime is 1222150439. The reversal of 1222150425 is 5240512221.

It is not a de Polignac number, because 1222150425 - 2² = 1222150421 is a prime.

It is a super-2 number, since 2×1222150425² = 2987303322655361250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222150395 and 1222150404.

It is not an unprimeable number, because it can be changed into a prime (1222150421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 352522 + ... + 355971.

It is an arithmetic number, because the mean of its divisors is an integer number (87853256).

Almost surely, 2^1222150425 is an apocalyptic number.

1222150425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1222150425 is a deficient number, since it is larger than the sum of its proper divisors (886327719).

1222150425 is a wasteful number, since it uses less digits than its factorization.

1222150425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708529 (or 708524 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1222150425 is about 34959.2680844436. The cubic root of 1222150425 is about 1069.1571739473.

Adding to 1222150425 its reverse (5240512221), we get a palindrome (6462662646).

The spelling of 1222150425 in words is "one billion, two hundred twenty-two million, one hundred fifty thousand, four hundred twenty-five".