1211011011152 has 40 divisors (see below), whose sum is σ = 2358489082752. Its totient is φ = 602369308800.

The previous prime is 1211011011151. The next prime is 1211011011241. The reversal of 1211011011152 is 2511101101121.

It is a self number, because there is not a number n which added to its sum of digits gives 1211011011152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211011011151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51148277 + ... + 51171947.

Almost surely, 2^{1211011011152} is an apocalyptic number.

It is an amenable number.

1211011011152 is a deficient number, since it is larger than the sum of its proper divisors (1147478071600).

1211011011152 is a wasteful number, since it uses less digits than its factorization.

1211011011152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40107 (or 40101 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 17.

Adding to 1211011011152 its reverse (2511101101121), we get a palindrome (3722112112273).

The spelling of 1211011011152 in words is "one trillion, two hundred eleven billion, eleven million, eleven thousand, one hundred fifty-two".