2221010022222 has 48 divisors (see below), whose sum is σ = 5095476266400. Its totient is φ = 696757648896.

The previous prime is 2221010022193. The next prime is 2221010022223. The reversal of 2221010022222 is 2222200101222.

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 = 2221010022195 and 2221010022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221010022223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7649154 + ... + 7934202.

It is an arithmetic number, because the mean of its divisors is an integer number (106155755550).

Almost surely, 2^{2221010022222} is an apocalyptic number.

2221010022222 is an abundant number, since it is smaller than the sum of its proper divisors (2874466244178).

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

2221010022222 is a wasteful number, since it uses less digits than its factorization.

2221010022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310537 (or 310534 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2221010022222 its reverse (2222200101222), we get a palindrome (4443210123444).

The spelling of 2221010022222 in words is "two trillion, two hundred twenty-one billion, ten million, twenty-two thousand, two hundred twenty-two".