12100220002 has 16 divisors (see below), whose sum is σ = 19549733112. Its totient is φ = 5583795840.

The previous prime is 12100219981. The next prime is 12100220017. The reversal of 12100220002 is 20002200121.

It is a Cunningham number, because it is equal to 110001²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1790051481 + 10310168521 = 42309^2 + 101539^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137502 + ... + 207622.

Almost surely, 2^12100220002 is an apocalyptic number.

12100220002 is a deficient number, since it is larger than the sum of its proper divisors (7449513110).

12100220002 is a wasteful number, since it uses less digits than its factorization.

12100220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76773.

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

Adding to 12100220002 its reverse (20002200121), we get a palindrome (32102420123).

The spelling of 12100220002 in words is "twelve billion, one hundred million, two hundred twenty thousand, two".