1211033149475 has 12 divisors (see below), whose sum is σ = 1553463213360. Its totient is φ = 935418708000.

The previous prime is 1211033149433. The next prime is 1211033149481. The reversal of 1211033149475 is 5749413301121.

It is a de Polignac number, because none of the positive numbers 2^k-1211033149475 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 835194551 + ... + 835196000.

It is an arithmetic number, because the mean of its divisors is an integer number (129455267780).

Almost surely, 2^{1211033149475} is an apocalyptic number.

1211033149475 is a deficient number, since it is larger than the sum of its proper divisors (342430063885).

1211033149475 is a wasteful number, since it uses less digits than its factorization.

1211033149475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670390590 (or 1670390585 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 1211033149475 in words is "one trillion, two hundred eleven billion, thirty-three million, one hundred forty-nine thousand, four hundred seventy-five".