2221022221022 has 16 divisors (see below), whose sum is σ = 3634434486144. Its totient is φ = 1009545975000.

The previous prime is 2221022221009. The next prime is 2221022221043. The reversal of 2221022221022 is 2201222201222.

It is a junction number, because it is equal to n+sod(n) for n = 2221022220985 and 2221022221003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2233397 + ... + 3070847.

It is an arithmetic number, because the mean of its divisors is an integer number (227152155384).

Almost surely, 2^{2221022221022} is an apocalyptic number.

2221022221022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2221022221022 is a deficient number, since it is larger than the sum of its proper divisors (1413412265122).

2221022221022 is a wasteful number, since it uses less digits than its factorization.

2221022221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958015.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2221022221022 its reverse (2201222201222), we get a palindrome (4422244422244).

The spelling of 2221022221022 in words is "two trillion, two hundred twenty-one billion, twenty-two million, two hundred twenty-one thousand, twenty-two".