22000020121201 has 4 divisors (see below), whose sum is σ = 22000430446912. Its totient is φ = 21999609795492.

The previous prime is 22000020121199. The next prime is 22000020121229. The reversal of 22000020121201 is 10212102000022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22000020121201 - 2¹ = 22000020121199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22000020421201) 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, 205082421 + ... + 205189666.

It is an arithmetic number, because the mean of its divisors is an integer number (5500107611728).

Almost surely, 2^{22000020121201} is an apocalyptic number.

It is an amenable number.

22000020121201 is a deficient number, since it is larger than the sum of its proper divisors (410325711).

22000020121201 is an equidigital number, since it uses as much as digits as its factorization.

22000020121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410325710.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22000020121201 its reverse (10212102000022), we get a palindrome (32212122121223).

The spelling of 22000020121201 in words is "twenty-two trillion, twenty million, one hundred twenty-one thousand, two hundred one".