1122121201011 has 16 divisors (see below), whose sum is σ = 1496985684480. Its totient is φ = 747668887040.

The previous prime is 1122121200997. The next prime is 1122121201063. The reversal of 1122121201011 is 1101021212211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1122121201011 - 2¹⁵ = 1122121168243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122121201811) 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 15 ways as a sum of consecutive naturals, for example, 46605106 + ... + 46629176.

It is an arithmetic number, because the mean of its divisors is an integer number (93561605280).

Almost surely, 2^{1122121201011} is an apocalyptic number.

1122121201011 is a deficient number, since it is larger than the sum of its proper divisors (374864483469).

1122121201011 is a wasteful number, since it uses less digits than its factorization.

1122121201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31986.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1122121201011 its reverse (1101021212211), we get a palindrome (2223142413222).

The spelling of 1122121201011 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred one thousand, eleven".