12131220002 has 8 divisors (see below), whose sum is σ = 19851087312. Its totient is φ = 5514190900.

The previous prime is 12131219993. The next prime is 12131220037. The reversal of 12131220002 is 20002213121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275709524 + ... + 275709567.

It is an arithmetic number, because the mean of its divisors is an integer number (2481385914).

Almost surely, 2^12131220002 is an apocalyptic number.

12131220002 is a deficient number, since it is larger than the sum of its proper divisors (7719867310).

12131220002 is a wasteful number, since it uses less digits than its factorization.

12131220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551419104.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12131220002 its reverse (20002213121), we get a palindrome (32133433123).

The spelling of 12131220002 in words is "twelve billion, one hundred thirty-one million, two hundred twenty thousand, two".