1211103213232 has 20 divisors (see below), whose sum is σ = 2559831791976. Its totient is φ = 550501460480.

The previous prime is 1211103213227. The next prime is 1211103213241. The reversal of 1211103213232 is 2323123011121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3440633953 + ... + 3440634304.

Almost surely, 2^{1211103213232} is an apocalyptic number.

It is an amenable number.

1211103213232 is an abundant number, since it is smaller than the sum of its proper divisors (1348728578744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211103213232 is a wasteful number, since it uses less digits than its factorization.

1211103213232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6881268276 (or 6881268270 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1211103213232 its reverse (2323123011121), we get a palindrome (3534226224353).

The spelling of 1211103213232 in words is "one trillion, two hundred eleven billion, one hundred three million, two hundred thirteen thousand, two hundred thirty-two".