1002220022 has 4 divisors (see below), whose sum is σ = 1503330036. Its totient is φ = 501110010.

The previous prime is 1002220001. The next prime is 1002220033. The reversal of 1002220022 is 2200222001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2200222001 = 38707 ⋅56843.

It is a junction number, because it is equal to n+sod(n) for n = 1002219985 and 1002220012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250555004 + ... + 250555007.

It is an arithmetic number, because the mean of its divisors is an integer number (375832509).

Almost surely, 2^1002220022 is an apocalyptic number.

1002220022 is a deficient number, since it is larger than the sum of its proper divisors (501110014).

1002220022 is an equidigital number, since it uses as much as digits as its factorization.

1002220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501110013.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 1002220022 is about 31657.8587715594. The cubic root of 1002220022 is about 1000.7394603969.

Adding to 1002220022 its reverse (2200222001), we get a palindrome (3202442023).

The spelling of 1002220022 in words is "one billion, two million, two hundred twenty thousand, twenty-two".