1121011220101 has 2 divisors, whose sum is σ = 1121011220102. Its totient is φ = 1121011220100.

The previous prime is 1121011220093. The next prime is 1121011220129. The reversal of 1121011220101 is 1010221101211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 883477804225 + 237533415876 = 939935^2 + 487374^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121011220101 - 2³ = 1121011220093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121011220171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560505610050 + 560505610051.

It is an arithmetic number, because the mean of its divisors is an integer number (560505610051).

Almost surely, 2^{1121011220101} is an apocalyptic number.

It is an amenable number.

1121011220101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121011220101 is an equidigital number, since it uses as much as digits as its factorization.

1121011220101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1121011220101 its reverse (1010221101211), we get a palindrome (2131232321312).

The spelling of 1121011220101 in words is "one trillion, one hundred twenty-one billion, eleven million, two hundred twenty thousand, one hundred one".