122121001201 has 4 divisors (see below), whose sum is σ = 122596180452. Its totient is φ = 121645821952.

The previous prime is 122121001199. The next prime is 122121001231. The reversal of 122121001201 is 102100121221.

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 119643351025 + 2477650176 = 345895^2 + 49776^2 .

It is a cyclic number.

It is not a de Polignac number, because 122121001201 - 2¹ = 122121001199 is a prime.

It is a super-3 number, since 3×122121001201³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122121001231) 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, 237589240 + ... + 237589753.

It is an arithmetic number, because the mean of its divisors is an integer number (30649045113).

Almost surely, 2^122121001201 is an apocalyptic number.

It is an amenable number.

122121001201 is a deficient number, since it is larger than the sum of its proper divisors (475179251).

122121001201 is an equidigital number, since it uses as much as digits as its factorization.

122121001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475179250.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122121001201 its reverse (102100121221), we get a palindrome (224221122422).

The spelling of 122121001201 in words is "one hundred twenty-two billion, one hundred twenty-one million, one thousand, two hundred one".