22021210120201 has 4 divisors (see below), whose sum is σ = 22080248217412. Its totient is φ = 21962172022992.

The previous prime is 22021210120159. The next prime is 22021210120307. The reversal of 22021210120201 is 10202101212022.

It is a happy number.

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 10825152825600 + 11196057294601 = 3290160^2 + 3346051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22021210120201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22021210120001) 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, 29519048046 + ... + 29519048791.

It is an arithmetic number, because the mean of its divisors is an integer number (5520062054353).

Almost surely, 2^{22021210120201} is an apocalyptic number.

It is an amenable number.

22021210120201 is a deficient number, since it is larger than the sum of its proper divisors (59038097211).

22021210120201 is an equidigital number, since it uses as much as digits as its factorization.

22021210120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59038097210.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22021210120201 its reverse (10202101212022), we get a palindrome (32223311332223).

The spelling of 22021210120201 in words is "twenty-two trillion, twenty-one billion, two hundred ten million, one hundred twenty thousand, two hundred one".