122100021201 has 32 divisors (see below), whose sum is σ = 168974747136. Its totient is φ = 78360480000.

The previous prime is 122100021187. The next prime is 122100021209. The reversal of 122100021201 is 102120001221.

It is not a de Polignac number, because 122100021201 - 2²¹ = 122097924049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122100021209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20972871 + ... + 20978691.

It is an arithmetic number, because the mean of its divisors is an integer number (5280460848).

Almost surely, 2^122100021201 is an apocalyptic number.

It is an amenable number.

122100021201 is a deficient number, since it is larger than the sum of its proper divisors (46874725935).

122100021201 is a wasteful number, since it uses less digits than its factorization.

122100021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7833.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 122100021201 its reverse (102120001221), we get a palindrome (224220022422).

The spelling of 122100021201 in words is "one hundred twenty-two billion, one hundred million, twenty-one thousand, two hundred one".