222111001002 has 32 divisors (see below), whose sum is σ = 487143051264. Its totient is φ = 66953970800.

The previous prime is 222111000883. The next prime is 222111001003. The reversal of 222111001002 is 200100111222.

It is a super-2 number, since 2×222111001002² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222111001003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8797128 + ... + 8822339.

It is an arithmetic number, because the mean of its divisors is an integer number (15223220352).

Almost surely, 2^222111001002 is an apocalyptic number.

222111001002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222111001002 is an abundant number, since it is smaller than the sum of its proper divisors (265032050262).

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

222111001002 is a wasteful number, since it uses less digits than its factorization.

222111001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17619674.

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

Adding to 222111001002 its reverse (200100111222), we get a palindrome (422211112224).

The spelling of 222111001002 in words is "two hundred twenty-two billion, one hundred eleven million, one thousand, two".