22201100211222 has 64 divisors (see below), whose sum is σ = 49476342205440. Its totient is φ = 7379287157088.

The previous prime is 22201100211221. The next prime is 22201100211281. The reversal of 22201100211222 is 22211200110222.

It is a happy number.

22201100211222 is a `hidden beast` number, since 2 + 220 + 1 + 10 + 0 + 211 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22201100211195 and 22201100211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201100211221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170310193 + ... + 170440499.

It is an arithmetic number, because the mean of its divisors is an integer number (773067846960).

Almost surely, 2^{22201100211222} is an apocalyptic number.

22201100211222 is an abundant number, since it is smaller than the sum of its proper divisors (27275241994218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22201100211222 is a wasteful number, since it uses less digits than its factorization.

22201100211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139282 (or 139276 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22201100211222 its reverse (22211200110222), we get a palindrome (44412300321444).

The spelling of 22201100211222 in words is "twenty-two trillion, two hundred one billion, one hundred million, two hundred eleven thousand, two hundred twenty-two".