122010320221 has 4 divisors (see below), whose sum is σ = 122045864092. Its totient is φ = 121974776352.

The previous prime is 122010320191. The next prime is 122010320231. The reversal of 122010320221 is 122023010221.

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 16944228900 + 105066091321 = 130170^2 + 324139^2 .

It is a cyclic number.

It is not a de Polignac number, because 122010320221 - 2⁹ = 122010319709 is a prime.

It is a super-2 number, since 2×122010320221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122010320195 and 122010320204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122010320231) 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, 17766786 + ... + 17773651.

It is an arithmetic number, because the mean of its divisors is an integer number (30511466023).

Almost surely, 2^122010320221 is an apocalyptic number.

It is an amenable number.

122010320221 is a deficient number, since it is larger than the sum of its proper divisors (35543871).

122010320221 is an equidigital number, since it uses as much as digits as its factorization.

122010320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35543870.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 122010320221 its reverse (122023010221), we get a palindrome (244033330442).

The spelling of 122010320221 in words is "one hundred twenty-two billion, ten million, three hundred twenty thousand, two hundred twenty-one".