222220220111001 has 96 divisors (see below), whose sum is σ = 382923426412800. Its totient is φ = 121533744384000.

The previous prime is 222220220110991. The next prime is 222220220111009. The reversal of 222220220111001 is 100111022022222.

It is a happy number.

222220220111001 is a `hidden beast` number, since 222 + 220 + 220 + 1 + 1 + 1 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 222220220111001 - 2¹⁸ = 222220219848857 is a prime.

It is a super-2 number, since 2×222220220111001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222220220111009) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1190791101 + ... + 1190977701.

It is an arithmetic number, because the mean of its divisors is an integer number (3988785691800).

Almost surely, 2^{222220220111001} is an apocalyptic number.

222220220111001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222220220111001 is a deficient number, since it is larger than the sum of its proper divisors (160703206301799).

222220220111001 is a wasteful number, since it uses less digits than its factorization.

222220220111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195407 (or 195404 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222220220111001 its reverse (100111022022222), we get a palindrome (322331242133223).

The spelling of 222220220111001 in words is "two hundred twenty-two trillion, two hundred twenty billion, two hundred twenty million, one hundred eleven thousand, one".