12155002622 has 24 divisors (see below), whose sum is σ = 21270420504. Its totient is φ = 5194259952.

The previous prime is 12155002621. The next prime is 12155002627. The reversal of 12155002622 is 22620055121.

It is a junction number, because it is equal to n+sod(n) for n = 12155002591 and 12155002600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12155002621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144713 + ... + 212724.

It is an arithmetic number, because the mean of its divisors is an integer number (886267521).

Almost surely, 2^12155002622 is an apocalyptic number.

12155002622 is a deficient number, since it is larger than the sum of its proper divisors (9115417882).

12155002622 is a wasteful number, since it uses less digits than its factorization.

12155002622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357800 (or 357793 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 12155002622 its reverse (22620055121), we get a palindrome (34775057743).

The spelling of 12155002622 in words is "twelve billion, one hundred fifty-five million, two thousand, six hundred twenty-two".