12020215052 has 12 divisors (see below), whose sum is σ = 21188920200. Its totient is φ = 5966237856.

The previous prime is 12020215021. The next prime is 12020215091. The reversal of 12020215052 is 25051202021.

It is a happy number.

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, 10966802 + ... + 10967897.

It is an arithmetic number, because the mean of its divisors is an integer number (1765743350).

Almost surely, 2^12020215052 is an apocalyptic number.

It is an amenable number.

12020215052 is a deficient number, since it is larger than the sum of its proper divisors (9168705148).

12020215052 is a wasteful number, since it uses less digits than its factorization.

12020215052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21934840 (or 21934838 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 12020215052 its reverse (25051202021), we get a palindrome (37071417073).

The spelling of 12020215052 in words is "twelve billion, twenty million, two hundred fifteen thousand, fifty-two".