1001022222 has 16 divisors (see below), whose sum is σ = 2002417920. Its totient is φ = 333611832.

The previous prime is 1001022173. The next prime is 1001022229. The reversal of 1001022222 is 2222201001.

1001022222 is a modest number, since divided by 22222 gives 10010 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1001022198 and 1001022207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001022229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29179 + ... + 53417.

It is an arithmetic number, because the mean of its divisors is an integer number (125151120).

Almost surely, 2^1001022222 is an apocalyptic number.

1001022222 is an abundant number, since it is smaller than the sum of its proper divisors (1001395698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001022222 is a wasteful number, since it uses less digits than its factorization.

1001022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31127.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1001022222 is about 31638.9352222858. The cubic root of 1001022222 is about 1000.3406246284.

Adding to 1001022222 its reverse (2222201001), we get a palindrome (3223223223).

The spelling of 1001022222 in words is "one billion, one million, twenty-two thousand, two hundred twenty-two".