1201320229 has 4 divisors (see below), whose sum is σ = 1202558400. Its totient is φ = 1200082060.

The previous prime is 1201320227. The next prime is 1201320247. The reversal of 1201320229 is 9220231021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9220231021 = 37 ⋅249195433.

It is a cyclic number.

It is not a de Polignac number, because 1201320229 - 2¹ = 1201320227 is a prime.

It is a super-2 number, since 2×1201320229² = 2886340585209224882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201320221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617629 + ... + 619570.

It is an arithmetic number, because the mean of its divisors is an integer number (300639600).

Almost surely, 2^1201320229 is an apocalyptic number.

It is an amenable number.

1201320229 is a deficient number, since it is larger than the sum of its proper divisors (1238171).

1201320229 is an equidigital number, since it uses as much as digits as its factorization.

1201320229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238170.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1201320229 is about 34660.0667772005. The cubic root of 1201320229 is about 1063.0481354240.

The spelling of 1201320229 in words is "one billion, two hundred one million, three hundred twenty thousand, two hundred twenty-nine".