10121222002 has 4 divisors (see below), whose sum is σ = 15181833006. Its totient is φ = 5060611000.

The previous prime is 10121221997. The next prime is 10121222011. The reversal of 10121222002 is 20022212101.

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., 10000200001 + 121022001 = 100001^2 + 11001^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2530305499 + ... + 2530305502.

Almost surely, 2^10121222002 is an apocalyptic number.

10121222002 is a deficient number, since it is larger than the sum of its proper divisors (5060611004).

10121222002 is an equidigital number, since it uses as much as digits as its factorization.

10121222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060611003.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10121222002 its reverse (20022212101), we get a palindrome (30143434103).

Subtracting 10121222002 from its reverse (20022212101), we obtain a palindrome (9900990099).

The spelling of 10121222002 in words is "ten billion, one hundred twenty-one million, two hundred twenty-two thousand, two".