22143402523201 has 4 divisors (see below), whose sum is σ = 22506409122004. Its totient is φ = 21780395924400.

The previous prime is 22143402523199. The next prime is 22143402523267. The reversal of 22143402523201 is 10232520434122.

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 1400615442576 + 20742787080625 = 1183476^2 + 4554425^2 .

It is a cyclic number.

It is not a de Polignac number, because 22143402523201 - 2¹ = 22143402523199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22143402523901) 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, 181503299310 + ... + 181503299431.

It is an arithmetic number, because the mean of its divisors is an integer number (5626602280501).

Almost surely, 2^{22143402523201} is an apocalyptic number.

It is an amenable number.

22143402523201 is a deficient number, since it is larger than the sum of its proper divisors (363006598803).

22143402523201 is an equidigital number, since it uses as much as digits as its factorization.

22143402523201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363006598802.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 22143402523201 its reverse (10232520434122), we get a palindrome (32375922957323).

The spelling of 22143402523201 in words is "twenty-two trillion, one hundred forty-three billion, four hundred two million, five hundred twenty-three thousand, two hundred one".