12121212202 has 32 divisors (see below), whose sum is σ = 20519811648. Its totient is φ = 5322000000.

The previous prime is 12121212197. The next prime is 12121212209. The reversal of 12121212202 is 20221212121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12121212209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24577 + ... + 157627.

It is an arithmetic number, because the mean of its divisors is an integer number (641244114).

Almost surely, 2^12121212202 is an apocalyptic number.

12121212202 is a deficient number, since it is larger than the sum of its proper divisors (8398599446).

12121212202 is a wasteful number, since it uses less digits than its factorization.

12121212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133206.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12121212202 its reverse (20221212121), we get a palindrome (32342424323).

The spelling of 12121212202 in words is "twelve billion, one hundred twenty-one million, two hundred twelve thousand, two hundred two".