1211440204 has 48 divisors (see below), whose sum is σ = 2343382272. Its totient is φ = 544444992.

The previous prime is 1211440193. The next prime is 1211440231. The reversal of 1211440204 is 4020441121.

It is a super-3 number, since 3×1211440204³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 989937 + ... + 991159.

It is an arithmetic number, because the mean of its divisors is an integer number (48820464).

Almost surely, 2^1211440204 is an apocalyptic number.

It is an amenable number.

1211440204 is a deficient number, since it is larger than the sum of its proper divisors (1131942068).

1211440204 is a wasteful number, since it uses less digits than its factorization.

1211440204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726 (or 1724 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1211440204 is about 34805.7495825043. The cubic root of 1211440204 is about 1066.0248472678.

Adding to 1211440204 its reverse (4020441121), we get a palindrome (5231881325).

The spelling of 1211440204 in words is "one billion, two hundred eleven million, four hundred forty thousand, two hundred four".