122020101002221 has 4 divisors (see below), whose sum is σ = 122076565650844. Its totient is φ = 121963636353600.

The previous prime is 122020101002209. The next prime is 122020101002251. The reversal of 122020101002221 is 122200101020221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48699601820100 + 73320499182121 = 6978510^2 + 8562739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122020101002221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122020101002195 and 122020101002204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020101002201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28232321070 + ... + 28232325391.

It is an arithmetic number, because the mean of its divisors is an integer number (30519141412711).

Almost surely, 2^{122020101002221} is an apocalyptic number.

It is an amenable number.

122020101002221 is a deficient number, since it is larger than the sum of its proper divisors (56464648623).

122020101002221 is an equidigital number, since it uses as much as digits as its factorization.

122020101002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56464648622.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122020101002221 its reverse (122200101020221), we get a palindrome (244220202022442).

The spelling of 122020101002221 in words is "one hundred twenty-two trillion, twenty billion, one hundred one million, two thousand, two hundred twenty-one".