1214209225 has 6 divisors (see below), whose sum is σ = 1505619470. Its totient is φ = 971367360.

The previous prime is 1214209181. The next prime is 1214209247. The reversal of 1214209225 is 5229024121.

It can be written as a sum of positive squares in 3 ways, for example, as 52012944 + 1162196281 = 7212^2 + 34091^2 .

It is not a de Polignac number, because 1214209225 - 2¹⁷ = 1214078153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1214209193 and 1214209202.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24284160 + ... + 24284209.

Almost surely, 2^1214209225 is an apocalyptic number.

It is an amenable number.

1214209225 is a deficient number, since it is larger than the sum of its proper divisors (291410245).

1214209225 is an equidigital number, since it uses as much as digits as its factorization.

1214209225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48568379 (or 48568374 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1214209225 is about 34845.5050903269. The cubic root of 1214209225 is about 1066.8364429739.

The spelling of 1214209225 in words is "one billion, two hundred fourteen million, two hundred nine thousand, two hundred twenty-five".