222202221221022 has 128 divisors (see below), whose sum is σ = 529780860177408. Its totient is φ = 60809093452800.

The previous prime is 222202221221009. The next prime is 222202221221023. The reversal of 222202221221022 is 220122122202222.

It is a junction number, because it is equal to n+sod(n) for n = 222202221220983 and 222202221221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222202221221023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33178572 + ... + 39309312.

It is an arithmetic number, because the mean of its divisors is an integer number (4138912970136).

Almost surely, 2^{222202221221022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222202221221022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264890430088704).

222202221221022 is an abundant number, since it is smaller than the sum of its proper divisors (307578638956386).

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

222202221221022 is a wasteful number, since it uses less digits than its factorization.

222202221221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6131154.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 222202221221022 its reverse (220122122202222), we get a palindrome (442324343423244).

The spelling of 222202221221022 in words is "two hundred twenty-two trillion, two hundred two billion, two hundred twenty-one million, two hundred twenty-one thousand, twenty-two".