12002220615 has 64 divisors (see below), whose sum is σ = 24334728192. Its totient is φ = 4906137600.

The previous prime is 12002220611. The next prime is 12002220619. The reversal of 12002220615 is 51602220021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12002220611) and next prime (12002220619).

It is not a de Polignac number, because 12002220615 - 2² = 12002220611 is a prime.

It is a super-3 number, since 3×12002220615³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 12002220591 and 12002220600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002220611) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14722 + ... + 155631.

It is an arithmetic number, because the mean of its divisors is an integer number (380230128).

Almost surely, 2^12002220615 is an apocalyptic number.

12002220615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12002220615 is an abundant number, since it is smaller than the sum of its proper divisors (12332507577).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12002220615 is a wasteful number, since it uses less digits than its factorization.

12002220615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170440.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 12002220615 its reverse (51602220021), we get a palindrome (63604440636).

The spelling of 12002220615 in words is "twelve billion, two million, two hundred twenty thousand, six hundred fifteen".