1121211202011 has 32 divisors (see below), whose sum is σ = 1514584286208. Its totient is φ = 737731144320.

The previous prime is 1121211201977. The next prime is 1121211202063. The reversal of 1121211202011 is 1102021121211.

It is a happy number.

It is not a de Polignac number, because 1121211202011 - 2⁷ = 1121211201883 is a prime.

It is a super-2 number, since 2×1121211202011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121211202211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69070266 + ... + 69086496.

It is an arithmetic number, because the mean of its divisors is an integer number (47330758944).

Almost surely, 2^{1121211202011} is an apocalyptic number.

1121211202011 is a deficient number, since it is larger than the sum of its proper divisors (393373084197).

1121211202011 is a wasteful number, since it uses less digits than its factorization.

1121211202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17371.

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

Adding to 1121211202011 its reverse (1102021121211), we get a palindrome (2223232323222).

The spelling of 1121211202011 in words is "one trillion, one hundred twenty-one billion, two hundred eleven million, two hundred two thousand, eleven".