1120121011 has 2 divisors, whose sum is σ = 1120121012. Its totient is φ = 1120121010.

The previous prime is 1120120997. The next prime is 1120121021. The reversal of 1120121011 is 1101210211.

It is an a-pointer prime, because the next prime (1120121021) can be obtained adding 1120121011 to its sum of digits (10).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1120121011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1120121021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560060505 + 560060506.

It is an arithmetic number, because the mean of its divisors is an integer number (560060506).

Almost surely, 2^1120121011 is an apocalyptic number.

1120121011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120121011 is an equidigital number, since it uses as much as digits as its factorization.

1120121011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1120121011 is about 33468.2089601460. The cubic root of 1120121011 is about 1038.5362207437.

Adding to 1120121011 its reverse (1101210211), we get a palindrome (2221331222).

The spelling of 1120121011 in words is "one billion, one hundred twenty million, one hundred twenty-one thousand, eleven".