1121002121211 has 16 divisors (see below), whose sum is σ = 1767096940800. Its totient is φ = 618483928608.

The previous prime is 1121002121171. The next prime is 1121002121329. The reversal of 1121002121211 is 1121212001211.

It is a happy number.

It is not a de Polignac number, because 1121002121211 - 2⁶ = 1121002121147 is a prime.

It is a super-2 number, since 2×1121002121211² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121002121611) 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, 920362381 + ... + 920363598.

It is an arithmetic number, because the mean of its divisors is an integer number (110443558800).

Almost surely, 2^{1121002121211} is an apocalyptic number.

1121002121211 is a deficient number, since it is larger than the sum of its proper divisors (646094819589).

1121002121211 is a wasteful number, since it uses less digits than its factorization.

1121002121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840726018.

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

Adding to 1121002121211 its reverse (1121212001211), we get a palindrome (2242214122422).

The spelling of 1121002121211 in words is "one trillion, one hundred twenty-one billion, two million, one hundred twenty-one thousand, two hundred eleven".