22111220201 has 8 divisors (see below), whose sum is σ = 26141344320. Its totient is φ = 18298940688.

The previous prime is 22111220191. The next prime is 22111220237. The reversal of 22111220201 is 10202211122.

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

It is not a de Polignac number, because 22111220201 - 2¹⁴ = 22111203817 is a prime.

It is a super-2 number, since 2×22111220201² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22111220251) 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, 54460931 + ... + 54461336.

It is an arithmetic number, because the mean of its divisors is an integer number (3267668040).

Almost surely, 2^22111220201 is an apocalyptic number.

It is an amenable number.

22111220201 is a deficient number, since it is larger than the sum of its proper divisors (4030124119).

22111220201 is a wasteful number, since it uses less digits than its factorization.

22111220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108922303.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22111220201 its reverse (10202211122), we get a palindrome (32313431323).

The spelling of 22111220201 in words is "twenty-two billion, one hundred eleven million, two hundred twenty thousand, two hundred one".