1212045411 has 16 divisors (see below), whose sum is σ = 1623542400. Its totient is φ = 804299328.

The previous prime is 1212045391. The next prime is 1212045451. The reversal of 1212045411 is 1145402121.

It is not a de Polignac number, because 1212045411 - 2³⁰ = 138303587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212045451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939655 + ... + 940943.

It is an arithmetic number, because the mean of its divisors is an integer number (101471400).

Almost surely, 2^1212045411 is an apocalyptic number.

1212045411 is a deficient number, since it is larger than the sum of its proper divisors (411496989).

1212045411 is a wasteful number, since it uses less digits than its factorization.

1212045411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1212045411 is about 34814.4425633960. The cubic root of 1212045411 is about 1066.2023380183.

Adding to 1212045411 its reverse (1145402121), we get a palindrome (2357447532).

The spelling of 1212045411 in words is "one billion, two hundred twelve million, forty-five thousand, four hundred eleven".