1002220011 has 48 divisors (see below), whose sum is σ = 1592791200. Its totient is φ = 603542016.

The previous prime is 1002220001. The next prime is 1002220033. The reversal of 1002220011 is 1100222001.

It is not a de Polignac number, because 1002220011 - 2⁵ = 1002219979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1002219975 and 1002220002.

It is not an unprimeable number, because it can be changed into a prime (1002220001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1134576 + ... + 1135458.

It is an arithmetic number, because the mean of its divisors is an integer number (33183150).

Almost surely, 2^1002220011 is an apocalyptic number.

1002220011 is a deficient number, since it is larger than the sum of its proper divisors (590571189).

1002220011 is a wasteful number, since it uses less digits than its factorization.

1002220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1002220011 is about 31657.8585978269. The cubic root of 1002220011 is about 1000.7394567356.

Adding to 1002220011 its reverse (1100222001), we get a palindrome (2102442012).

The spelling of 1002220011 in words is "one billion, two million, two hundred twenty thousand, eleven".