1211120212132 has 6 divisors (see below), whose sum is σ = 2119460371238. Its totient is φ = 605560106064.

The previous prime is 1211120212091. The next prime is 1211120212139. The reversal of 1211120212132 is 2312120211121.

It can be written as a sum of positive squares in only one way, i.e., 1046271219876 + 164848992256 = 1022874^2 + 406016^2 .

It is not an unprimeable number, because it can be changed into a prime (1211120212139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151390026513 + ... + 151390026520.

Almost surely, 2^{1211120212132} is an apocalyptic number.

It is an amenable number.

1211120212132 is a deficient number, since it is larger than the sum of its proper divisors (908340159106).

1211120212132 is a wasteful number, since it uses less digits than its factorization.

1211120212132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302780053037 (or 302780053035 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1211120212132 its reverse (2312120211121), we get a palindrome (3523240423253).

The spelling of 1211120212132 in words is "one trillion, two hundred eleven billion, one hundred twenty million, two hundred twelve thousand, one hundred thirty-two".