122212210021201 has 4 divisors (see below), whose sum is σ = 124518100776372. Its totient is φ = 119906319266032.

The previous prime is 122212210021189. The next prime is 122212210021241. The reversal of 122212210021201 is 102120012212221.

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 50507743334400 + 71704466686801 = 7106880^2 + 8467849^2 .

It is a cyclic number.

It is not a de Polignac number, because 122212210021201 - 2⁷ = 122212210021073 is a prime.

It is a super-2 number, since 2×122212210021201² (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 (122212210021241) 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, 1152945377506 + ... + 1152945377611.

It is an arithmetic number, because the mean of its divisors is an integer number (31129525194093).

Almost surely, 2^{122212210021201} is an apocalyptic number.

It is an amenable number.

122212210021201 is a deficient number, since it is larger than the sum of its proper divisors (2305890755171).

122212210021201 is an equidigital number, since it uses as much as digits as its factorization.

122212210021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305890755170.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122212210021201 its reverse (102120012212221), we get a palindrome (224332222233422).

The spelling of 122212210021201 in words is "one hundred twenty-two trillion, two hundred twelve billion, two hundred ten million, twenty-one thousand, two hundred one".