220212221121222 has 64 divisors (see below), whose sum is σ = 482841996779520. Its totient is φ = 66401366724000.

The previous prime is 220212221121199. The next prime is 220212221121229. The reversal of 220212221121222 is 222121122212022.

It is a happy number.

It is a super-2 number, since 2×220212221121222² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220212221121192 and 220212221121201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220212221121229) 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, 933597 + ... + 21007047.

It is an arithmetic number, because the mean of its divisors is an integer number (7544406199680).

Almost surely, 2^{220212221121222} is an apocalyptic number.

220212221121222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220212221121222 is an abundant number, since it is smaller than the sum of its proper divisors (262629775658298).

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

220212221121222 is a wasteful number, since it uses less digits than its factorization.

220212221121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20074289.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 220212221121222 its reverse (222121122212022), we get a palindrome (442333343333244).

The spelling of 220212221121222 in words is "two hundred twenty trillion, two hundred twelve billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred twenty-two".