122112132221201 has 4 divisors (see below), whose sum is σ = 123784901155812. Its totient is φ = 120439363286592.

The previous prime is 122112132221197. The next prime is 122112132221237. The reversal of 122112132221201 is 102122231211221.

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 27947621475601 + 94164510745600 = 5286551^2 + 9703840^2 .

It is a cyclic number.

It is not a de Polignac number, because 122112132221201 - 2² = 122112132221197 is a prime.

It is a super-2 number, since 2×122112132221201² (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 (122112132221291) 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, 836384467196 + ... + 836384467341.

It is an arithmetic number, because the mean of its divisors is an integer number (30946225288953).

Almost surely, 2^{122112132221201} is an apocalyptic number.

It is an amenable number.

122112132221201 is a deficient number, since it is larger than the sum of its proper divisors (1672768934611).

122112132221201 is an equidigital number, since it uses as much as digits as its factorization.

122112132221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672768934610.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 122112132221201 its reverse (102122231211221), we get a palindrome (224234363432422).

The spelling of 122112132221201 in words is "one hundred twenty-two trillion, one hundred twelve billion, one hundred thirty-two million, two hundred twenty-one thousand, two hundred one".