220001031222 has 64 divisors (see below), whose sum is σ = 510546516480. Its totient is φ = 61901409024.

The previous prime is 220001031203. The next prime is 220001031233. The reversal of 220001031222 is 222130100022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 990304 + ... + 1191932.

It is an arithmetic number, because the mean of its divisors is an integer number (7977289320).

Almost surely, 2^220001031222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220001031222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255273258240).

220001031222 is an abundant number, since it is smaller than the sum of its proper divisors (290545485258).

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

220001031222 is a wasteful number, since it uses less digits than its factorization.

220001031222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202037.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 220001031222 its reverse (222130100022), we get a palindrome (442131131244).

The spelling of 220001031222 in words is "two hundred twenty billion, one million, thirty-one thousand, two hundred twenty-two".