1211401334 has 128 divisors (see below), whose sum is σ = 2377589760. Its totient is φ = 454348800.

The previous prime is 1211401333. The next prime is 1211401357. The reversal of 1211401334 is 4331041121.

It is a super-3 number, since 3×1211401334³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211401333) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11761127 + ... + 11761229.

It is an arithmetic number, because the mean of its divisors is an integer number (18574920).

Almost surely, 2^1211401334 is an apocalyptic number.

1211401334 is a deficient number, since it is larger than the sum of its proper divisors (1166188426).

1211401334 is a wasteful number, since it uses less digits than its factorization.

1211401334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1211401334 is about 34805.1911932689. The cubic root of 1211401334 is about 1066.0134457341.

Adding to 1211401334 its reverse (4331041121), we get a palindrome (5542442455).

The spelling of 1211401334 in words is "one billion, two hundred eleven million, four hundred one thousand, three hundred thirty-four".