2001100222 has 8 divisors (see below), whose sum is σ = 3274527672. Its totient is φ = 909591000.

The previous prime is 2001100207. The next prime is 2001100237. The reversal of 2001100222 is 2220011002.

It is an interprime number because it is at equal distance from previous prime (2001100207) and next prime (2001100237).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2001100199 and 2001100208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45479529 + ... + 45479572.

It is an arithmetic number, because the mean of its divisors is an integer number (409315959).

Almost surely, 2^2001100222 is an apocalyptic number.

2001100222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2001100222 is a deficient number, since it is larger than the sum of its proper divisors (1273427450).

2001100222 is a wasteful number, since it uses less digits than its factorization.

2001100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90959114.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2001100222 is about 44733.6587146636. The cubic root of 2001100222 is about 1260.1520396863.

Adding to 2001100222 its reverse (2220011002), we get a palindrome (4221111224).

It can be divided in two parts, 20011002 and 22, that multiplied together give a palindrome (440242044).

The spelling of 2001100222 in words is "two billion, one million, one hundred thousand, two hundred twenty-two".