1121101020001 has 2 divisors, whose sum is σ = 1121101020002. Its totient is φ = 1121101020000.

The previous prime is 1121101019993. The next prime is 1121101020019. The reversal of 1121101020001 is 1000201011211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1121055322401 + 45697600 = 1058799^2 + 6760^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121101020001 - 2³ = 1121101019993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121101020001.

It is not a weakly prime, because it can be changed into another prime (1121101020101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560550510000 + 560550510001.

It is an arithmetic number, because the mean of its divisors is an integer number (560550510001).

Almost surely, 2^{1121101020001} is an apocalyptic number.

It is an amenable number.

1121101020001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121101020001 is an equidigital number, since it uses as much as digits as its factorization.

1121101020001 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.

Adding to 1121101020001 its reverse (1000201011211), we get a palindrome (2121302031212).

The spelling of 1121101020001 in words is "one trillion, one hundred twenty-one billion, one hundred one million, twenty thousand, one".