122200010221 has 4 divisors (see below), whose sum is σ = 122310200700. Its totient is φ = 122089819744.

The previous prime is 122200010131. The next prime is 122200010243. The reversal of 122200010221 is 122010002221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122010002221 = 1601 ⋅76208621.

It can be written as a sum of positive squares in 2 ways, for example, as 5758684996 + 116441325225 = 75886^2 + 341235^2 .

It is a cyclic number.

It is not a de Polignac number, because 122200010221 - 2²³ = 122191621613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122200010281) 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, 55093576 + ... + 55095793.

It is an arithmetic number, because the mean of its divisors is an integer number (30577550175).

Almost surely, 2^122200010221 is an apocalyptic number.

It is an amenable number.

122200010221 is a deficient number, since it is larger than the sum of its proper divisors (110190479).

122200010221 is a wasteful number, since it uses less digits than its factorization.

122200010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110190478.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122200010221 its reverse (122010002221), we get a palindrome (244210012442).

The spelling of 122200010221 in words is "one hundred twenty-two billion, two hundred million, ten thousand, two hundred twenty-one".