10001222002 has 4 divisors (see below), whose sum is σ = 15001833006. Its totient is φ = 5000611000.

The previous prime is 10001221991. The next prime is 10001222017. The reversal of 10001222002 is 20022210001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20022210001 = 6491 ⋅3084611.

It can be written as a sum of positive squares in only one way, i.e., 6329952721 + 3671269281 = 79561^2 + 60591^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10001222002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500305499 + ... + 2500305502.

Almost surely, 2^10001222002 is an apocalyptic number.

10001222002 is a deficient number, since it is larger than the sum of its proper divisors (5000611004).

10001222002 is an equidigital number, since it uses as much as digits as its factorization.

10001222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000611003.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 10001222002 its reverse (20022210001), we get a palindrome (30023432003).

The spelling of 10001222002 in words is "ten billion, one million, two hundred twenty-two thousand, two".