1212204053 has 4 divisors (see below), whose sum is σ = 1224701100. Its totient is φ = 1199707008.

The previous prime is 1212204043. The next prime is 1212204131. The reversal of 1212204053 is 3504022121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3504022121 = 29 ⋅120828349.

It can be written as a sum of positive squares in 2 ways, for example, as 248598289 + 963605764 = 15767^2 + 31042^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212204053 - 2¹⁰ = 1212203029 is a prime.

It is a super-2 number, since 2×1212204053² = 2938877332219253618, 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 (1212204043) 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, 6248378 + ... + 6248571.

It is an arithmetic number, because the mean of its divisors is an integer number (306175275).

Almost surely, 2^1212204053 is an apocalyptic number.

It is an amenable number.

1212204053 is a deficient number, since it is larger than the sum of its proper divisors (12497047).

1212204053 is an equidigital number, since it uses as much as digits as its factorization.

1212204053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12497046.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1212204053 is about 34816.7208823577. The cubic root of 1212204053 is about 1066.2488536276.

Adding to 1212204053 its reverse (3504022121), we get a palindrome (4716226174).

The spelling of 1212204053 in words is "one billion, two hundred twelve million, two hundred four thousand, fifty-three".