122221212210201 has 16 divisors (see below), whose sum is σ = 175573065261440. Its totient is φ = 75180507937920.

The previous prime is 122221212210193. The next prime is 122221212210211. The reversal of 122221212210201 is 102012212122221.

It is not a de Polignac number, because 122221212210201 - 2³ = 122221212210193 is a prime.

It is a super-2 number, since 2×122221212210201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122221212210211) 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 15 ways as a sum of consecutive naturals, for example, 677944756 + ... + 678125013.

It is an arithmetic number, because the mean of its divisors is an integer number (10973316578840).

Almost surely, 2^{122221212210201} is an apocalyptic number.

It is an amenable number.

122221212210201 is a deficient number, since it is larger than the sum of its proper divisors (53351853051239).

122221212210201 is a wasteful number, since it uses less digits than its factorization.

122221212210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356072096.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 122221212210201 its reverse (102012212122221), we get a palindrome (224233424332422).

The spelling of 122221212210201 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, two hundred twelve million, two hundred ten thousand, two hundred one".