222122002 has 4 divisors (see below), whose sum is σ = 333183006. Its totient is φ = 111061000.

The previous prime is 222121981. The next prime is 222122023. The reversal of 222122002 is 200221222.

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

It is an interprime number because it is at equal distance from previous prime (222121981) and next prime (222122023).

It can be written as a sum of positive squares in only one way, i.e., 195692121 + 26429881 = 13989^2 + 5141^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55530499 + ... + 55530502.

Almost surely, 2^222122002 is an apocalyptic number.

222122002 is a deficient number, since it is larger than the sum of its proper divisors (111061004).

222122002 is a wasteful number, since it uses less digits than its factorization.

222122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111061003.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 222122002 is about 14903.7579824687. The cubic root of 222122002 is about 605.6157944706.

Adding to 222122002 its reverse (200221222), we get a palindrome (422343224).

The spelling of 222122002 in words is "two hundred twenty-two million, one hundred twenty-two thousand, two".