1211022113133 has 16 divisors (see below), whose sum is σ = 1884630159360. Its totient is φ = 677288962416.

The previous prime is 1211022113131. The next prime is 1211022113137. The reversal of 1211022113133 is 3313112201121.

It is not a de Polignac number, because 1211022113133 - 2¹ = 1211022113131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211022113131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613485393 + ... + 613487366.

It is an arithmetic number, because the mean of its divisors is an integer number (117789384960).

Almost surely, 2^{1211022113133} is an apocalyptic number.

It is an amenable number.

1211022113133 is a deficient number, since it is larger than the sum of its proper divisors (673608046227).

1211022113133 is a wasteful number, since it uses less digits than its factorization.

1211022113133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226972816.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1211022113133 its reverse (3313112201121), we get a palindrome (4524134314254).

The spelling of 1211022113133 in words is "one trillion, two hundred eleven billion, twenty-two million, one hundred thirteen thousand, one hundred thirty-three".