122202210121 has 8 divisors (see below), whose sum is σ = 122771521800. Its totient is φ = 121633751040.

The previous prime is 122202210113. The next prime is 122202210131. The reversal of 122202210121 is 121012202221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6609690000 + 115592520121 = 81300^2 + 339989^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122202210121 - 2³ = 122202210113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122202210095 and 122202210104.

It is not an unprimeable number, because it can be changed into a prime (122202210131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75081 + ... + 500041.

It is an arithmetic number, because the mean of its divisors is an integer number (15346440225).

Almost surely, 2^122202210121 is an apocalyptic number.

It is an amenable number.

122202210121 is a deficient number, since it is larger than the sum of its proper divisors (569311679).

122202210121 is a wasteful number, since it uses less digits than its factorization.

122202210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426299.

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

Adding to 122202210121 its reverse (121012202221), we get a palindrome (243214412342).

The spelling of 122202210121 in words is "one hundred twenty-two billion, two hundred two million, two hundred ten thousand, one hundred twenty-one".