1211412266 has 16 divisors (see below), whose sum is σ = 1842086400. Its totient is φ = 597433968.

The previous prime is 1211412253. The next prime is 1211412269. The reversal of 1211412266 is 6622141121.

It is a super-3 number, since 3×1211412266³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1211412269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36155 + ... + 61073.

It is an arithmetic number, because the mean of its divisors is an integer number (115130400).

Almost surely, 2^1211412266 is an apocalyptic number.

1211412266 is a deficient number, since it is larger than the sum of its proper divisors (630674134).

1211412266 is a wasteful number, since it uses less digits than its factorization.

1211412266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25253.

The product of its digits is 1152, while the sum is 26.

The square root of 1211412266 is about 34805.3482384532. The cubic root of 1211412266 is about 1066.0166523851.

Adding to 1211412266 its reverse (6622141121), we get a palindrome (7833553387).

The spelling of 1211412266 in words is "one billion, two hundred eleven million, four hundred twelve thousand, two hundred sixty-six".