12100221222002 has 4 divisors (see below), whose sum is σ = 18150331833006. Its totient is φ = 6050110611000.

The previous prime is 12100221221917. The next prime is 12100221222017. The reversal of 12100221222002 is 20022212200121.

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., 9636486024361 + 2463735197641 = 3104269^2 + 1569629^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3025055305499 + ... + 3025055305502.

Almost surely, 2^{12100221222002} is an apocalyptic number.

12100221222002 is a deficient number, since it is larger than the sum of its proper divisors (6050110611004).

12100221222002 is an equidigital number, since it uses as much as digits as its factorization.

12100221222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6050110611003.

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

Adding to 12100221222002 its reverse (20022212200121), we get a palindrome (32122433422123).

The spelling of 12100221222002 in words is "twelve trillion, one hundred billion, two hundred twenty-one million, two hundred twenty-two thousand, two".