1105010101021 has 2 divisors, whose sum is σ = 1105010101022. Its totient is φ = 1105010101020.

The previous prime is 1105010100989. The next prime is 1105010101099. The reversal of 1105010101021 is 1201010105011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 689333328121 + 415676772900 = 830261^2 + 644730^2 .

It is a cyclic number.

It is not a de Polignac number, because 1105010101021 - 2⁵ = 1105010100989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1105010100992 and 1105010101010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105010107021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552505050510 + 552505050511.

It is an arithmetic number, because the mean of its divisors is an integer number (552505050511).

Almost surely, 2^{1105010101021} is an apocalyptic number.

It is an amenable number.

1105010101021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105010101021 is an equidigital number, since it uses as much as digits as its factorization.

1105010101021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10, while the sum is 13.

Adding to 1105010101021 its reverse (1201010105011), we get a palindrome (2306020206032).

The spelling of 1105010101021 in words is "one trillion, one hundred five billion, ten million, one hundred one thousand, twenty-one".