23211111121201 has 4 divisors (see below), whose sum is σ = 23424057094900. Its totient is φ = 22998165147504.

The previous prime is 23211111121199. The next prime is 23211111121229. The reversal of 23211111121201 is 10212111111232.

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 13978027238400 + 9233083882801 = 3738720^2 + 3038599^2 .

It is a cyclic number.

It is not a de Polignac number, because 23211111121201 - 2¹ = 23211111121199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23211111121301) 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, 106472986686 + ... + 106472986903.

It is an arithmetic number, because the mean of its divisors is an integer number (5856014273725).

Almost surely, 2^{23211111121201} is an apocalyptic number.

It is an amenable number.

23211111121201 is a deficient number, since it is larger than the sum of its proper divisors (212945973699).

23211111121201 is a wasteful number, since it uses less digits than its factorization.

23211111121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212945973698.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 23211111121201 its reverse (10212111111232), we get a palindrome (33423222232433).

The spelling of 23211111121201 in words is "twenty-three trillion, two hundred eleven billion, one hundred eleven million, one hundred twenty-one thousand, two hundred one".