101120012221021 has 2 divisors, whose sum is σ = 101120012221022. Its totient is φ = 101120012221020.

The previous prime is 101120012221013. The next prime is 101120012221037. The reversal of 101120012221021 is 120122210021101.

It is an a-pointer prime, because the next prime (101120012221037) can be obtained adding 101120012221021 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72192976256025 + 28927035964996 = 8496645^2 + 5378386^2 .

It is a cyclic number.

It is not a de Polignac number, because 101120012221021 - 2³ = 101120012221013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101120012220986 and 101120012221004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101120012221061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50560006110510 + 50560006110511.

It is an arithmetic number, because the mean of its divisors is an integer number (50560006110511).

Almost surely, 2^{101120012221021} is an apocalyptic number.

It is an amenable number.

101120012221021 is a deficient number, since it is larger than the sum of its proper divisors (1).

101120012221021 is an equidigital number, since it uses as much as digits as its factorization.

101120012221021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101120012221021 its reverse (120122210021101), we get a palindrome (221242222242122).

The spelling of 101120012221021 in words is "one hundred one trillion, one hundred twenty billion, twelve million, two hundred twenty-one thousand, twenty-one".