122102000122221 has 32 divisors (see below), whose sum is σ = 213402369228800. Its totient is φ = 67521843382320.

The previous prime is 122102000122217. The next prime is 122102000122243. The reversal of 122102000122221 is 122221000201221.

It is a happy number.

122102000122221 is a `hidden beast` number, since 1 + 221 + 0 + 200 + 0 + 1 + 22 + 221 = 666.

It is not a de Polignac number, because 122102000122221 - 2² = 122102000122217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122102000122194 and 122102000122203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102000122321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10420031701 + ... + 10420043418.

It is an arithmetic number, because the mean of its divisors is an integer number (6668824038400).

Almost surely, 2^{122102000122221} is an apocalyptic number.

It is an amenable number.

122102000122221 is a deficient number, since it is larger than the sum of its proper divisors (91300369106579).

122102000122221 is a wasteful number, since it uses less digits than its factorization.

122102000122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20840075166 (or 20840075160 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122102000122221 its reverse (122221000201221), we get a palindrome (244323000323442).

The spelling of 122102000122221 in words is "one hundred twenty-two trillion, one hundred two billion, one hundred twenty-two thousand, two hundred twenty-one".