1211304022412 has 24 divisors (see below), whose sum is σ = 2316350131200. Its totient is φ = 549673538960.

The previous prime is 1211304022403. The next prime is 1211304022429. The reversal of 1211304022412 is 2142204031121.

It is a super-2 number, since 2×1211304022412² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22953308 + ... + 23006019.

It is an arithmetic number, because the mean of its divisors is an integer number (96514588800).

Almost surely, 2^{1211304022412} is an apocalyptic number.

It is an amenable number.

1211304022412 is a deficient number, since it is larger than the sum of its proper divisors (1105046108788).

1211304022412 is a wasteful number, since it uses less digits than its factorization.

1211304022412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45959941 (or 45959939 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1211304022412 its reverse (2142204031121), we get a palindrome (3353508053533).

The spelling of 1211304022412 in words is "one trillion, two hundred eleven billion, three hundred four million, twenty-two thousand, four hundred twelve".