222121132301 has 4 divisors (see below), whose sum is σ = 225163887612. Its totient is φ = 219078376992.

The previous prime is 222121132297. The next prime is 222121132319. The reversal of 222121132301 is 103231121222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 103231121222 = 2 ⋅51615560611.

It can be written as a sum of positive squares in 2 ways, for example, as 128271422500 + 93849709801 = 358150^2 + 306349^2 .

It is a cyclic number.

It is not a de Polignac number, because 222121132301 - 2² = 222121132297 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222121132361) 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, 1521377546 + ... + 1521377691.

It is an arithmetic number, because the mean of its divisors is an integer number (56290971903).

Almost surely, 2^222121132301 is an apocalyptic number.

It is an amenable number.

222121132301 is a deficient number, since it is larger than the sum of its proper divisors (3042755311).

222121132301 is an equidigital number, since it uses as much as digits as its factorization.

222121132301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3042755310.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 222121132301 its reverse (103231121222), we get a palindrome (325352253523).

The spelling of 222121132301 in words is "two hundred twenty-two billion, one hundred twenty-one million, one hundred thirty-two thousand, three hundred one".