1205140222124 has 12 divisors (see below), whose sum is σ = 2143569084048. Its totient is φ = 592691912400.

The previous prime is 1205140222067. The next prime is 1205140222157. The reversal of 1205140222124 is 4212220415021.

It is a junction number, because it is equal to n+sod(n) for n = 1205140222093 and 1205140222102.

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, 2469549392 + ... + 2469549879.

It is an arithmetic number, because the mean of its divisors is an integer number (178630757004).

Almost surely, 2^{1205140222124} is an apocalyptic number.

It is an amenable number.

1205140222124 is a deficient number, since it is larger than the sum of its proper divisors (938428861924).

1205140222124 is a wasteful number, since it uses less digits than its factorization.

1205140222124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939099336 (or 4939099334 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 1205140222124 its reverse (4212220415021), we get a palindrome (5417360637145).

The spelling of 1205140222124 in words is "one trillion, two hundred five billion, one hundred forty million, two hundred twenty-two thousand, one hundred twenty-four".