212222211002 has 4 divisors (see below), whose sum is σ = 318333316506. Its totient is φ = 106111105500.

The previous prime is 212222210999. The next prime is 212222211011. The reversal of 212222211002 is 200112222212.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 167877853441 + 44344357561 = 409729^2 + 210581^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53055552749 + ... + 53055552752.

Almost surely, 2^212222211002 is an apocalyptic number.

212222211002 is a deficient number, since it is larger than the sum of its proper divisors (106111105504).

212222211002 is a wasteful number, since it uses less digits than its factorization.

212222211002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106111105503.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212222211002 its reverse (200112222212), we get a palindrome (412334433214).

The spelling of 212222211002 in words is "two hundred twelve billion, two hundred twenty-two million, two hundred eleven thousand, two".