22012022201 has 8 divisors (see below), whose sum is σ = 23713591944. Its totient is φ = 20311643520.

The previous prime is 22012022167. The next prime is 22012022213. The reversal of 22012022201 is 10222021022.

It can be written as a sum of positive squares in 4 ways, for example, as 3726492025 + 18285530176 = 61045^2 + 135224^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22012022201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22012022401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259190 + ... + 333471.

It is an arithmetic number, because the mean of its divisors is an integer number (2964198993).

Almost surely, 2^22012022201 is an apocalyptic number.

It is an amenable number.

22012022201 is a deficient number, since it is larger than the sum of its proper divisors (1701569743).

22012022201 is a wasteful number, since it uses less digits than its factorization.

22012022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595531.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22012022201 its reverse (10222021022), we get a palindrome (32234043223).

The spelling of 22012022201 in words is "twenty-two billion, twelve million, twenty-two thousand, two hundred one".