222444001101 has 16 divisors (see below), whose sum is σ = 339047134848. Its totient is φ = 127079040000.

The previous prime is 222444001093. The next prime is 222444001159. The reversal of 222444001101 is 101100444222.

It is not a de Polignac number, because 222444001101 - 2³ = 222444001093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222444001001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1239720 + ... + 1407761.

It is an arithmetic number, because the mean of its divisors is an integer number (21190445928).

Almost surely, 2^222444001101 is an apocalyptic number.

222444001101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222444001101 is a deficient number, since it is larger than the sum of its proper divisors (116603133747).

222444001101 is a wasteful number, since it uses less digits than its factorization.

222444001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2651492.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 222444001101 its reverse (101100444222), we get a palindrome (323544445323).

The spelling of 222444001101 in words is "two hundred twenty-two billion, four hundred forty-four million, one thousand, one hundred one".