220222212001 has 6 divisors (see below), whose sum is σ = 242062431506. Its totient is φ = 200202010800.

The previous prime is 220222211947. The next prime is 220222212047. The reversal of 220222212001 is 100212222022.

It can be written as a sum of positive squares in only one way, i.e., 135921992976 + 84300219025 = 368676^2 + 290345^2 .

It is not a de Polignac number, because 220222212001 - 2¹¹ = 220222209953 is a prime.

It is a super-2 number, since 2×220222212001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220222212071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 910009020 + ... + 910009261.

Almost surely, 2^220222212001 is an apocalyptic number.

It is an amenable number.

220222212001 is a deficient number, since it is larger than the sum of its proper divisors (21840219505).

220222212001 is a wasteful number, since it uses less digits than its factorization.

220222212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820018303 (or 1820018292 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220222212001 its reverse (100212222022), we get a palindrome (320434434023).

The spelling of 220222212001 in words is "two hundred twenty billion, two hundred twenty-two million, two hundred twelve thousand, one".