2001002222 has 4 divisors (see below), whose sum is σ = 3001503336. Its totient is φ = 1000501110.

The previous prime is 2001002207. The next prime is 2001002239. The reversal of 2001002222 is 2222001002.

It is a semiprime because it is the product of two primes.

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, 500250554 + ... + 500250557.

It is an arithmetic number, because the mean of its divisors is an integer number (750375834).

Almost surely, 2^2001002222 is an apocalyptic number.

2001002222 is a deficient number, since it is larger than the sum of its proper divisors (1000501114).

2001002222 is a wasteful number, since it uses less digits than its factorization.

2001002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000501113.

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

The square root of 2001002222 is about 44732.5633291901. The cubic root of 2001002222 is about 1260.1314681836.

Adding to 2001002222 its reverse (2222001002), we get a palindrome (4223003224).

It can be divided in two parts, 2001002 and 222, that multiplied together give a palindrome (444222444).

The spelling of 2001002222 in words is "two billion, one million, two thousand, two hundred twenty-two".