1220925122 has 8 divisors (see below), whose sum is σ = 1831693500. Its totient is φ = 610360624.

The previous prime is 1220925113. The next prime is 1220925191. The reversal of 1220925122 is 2215290221.

It can be written as a sum of positive squares in 2 ways, for example, as 1095014281 + 125910841 = 33091^2 + 11221^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1220925091 and 1220925100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34997 + ... + 60552.

Almost surely, 2^1220925122 is an apocalyptic number.

1220925122 is a deficient number, since it is larger than the sum of its proper divisors (610768378).

1220925122 is an equidigital number, since it uses as much as digits as its factorization.

1220925122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101940.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1220925122 is about 34941.7389664567. The cubic root of 1220925122 is about 1068.7997494391.

The spelling of 1220925122 in words is "one billion, two hundred twenty million, nine hundred twenty-five thousand, one hundred twenty-two".