12222002124 has 18 divisors (see below), whose sum is σ = 30894505460. Its totient is φ = 4074000696.

The previous prime is 12222002087. The next prime is 12222002141. The reversal of 12222002124 is 42120022221.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×12222002124² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12222002097 and 12222002106.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 169749994 + ... + 169750065.

Almost surely, 2^12222002124 is an apocalyptic number.

It is an amenable number.

12222002124 is an abundant number, since it is smaller than the sum of its proper divisors (18672503336).

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

12222002124 is a wasteful number, since it uses less digits than its factorization.

12222002124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339500069 (or 339500064 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 12222002124 its reverse (42120022221), we get a palindrome (54342024345).

The spelling of 12222002124 in words is "twelve billion, two hundred twenty-two million, two thousand, one hundred twenty-four".