1002222111 has 8 divisors (see below), whose sum is σ = 1457777664. Its totient is φ = 607407320.

The previous prime is 1002222101. The next prime is 1002222121. The reversal of 1002222111 is 1112222001.

It is an interprime number because it is at equal distance from previous prime (1002222101) and next prime (1002222121).

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

It is a cyclic number.

It is not a de Polignac number, because 1002222111 - 2⁶ = 1002222047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002222101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15185151 + ... + 15185216.

It is an arithmetic number, because the mean of its divisors is an integer number (182222208).

Almost surely, 2^1002222111 is an apocalyptic number.

1002222111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1002222111 is a deficient number, since it is larger than the sum of its proper divisors (455555553).

1002222111 is a wasteful number, since it uses less digits than its factorization.

1002222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30370381.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1002222111 is about 31657.8917649296. The cubic root of 1002222111 is about 1000.7401557010.

Adding to 1002222111 its reverse (1112222001), we get a palindrome (2114444112).

It can be divided in two parts, 1002 and 222111, that multiplied together give a palindrome (222555222).

The spelling of 1002222111 in words is "one billion, two million, two hundred twenty-two thousand, one hundred eleven".