1205140222122 has 8 divisors (see below), whose sum is σ = 2410280444256. Its totient is φ = 401713407372.

The previous prime is 1205140222067. The next prime is 1205140222157. The reversal of 1205140222122 is 2212220415021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1205140222122 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1205140222092 and 1205140222101.

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, 100428351838 + ... + 100428351849.

It is an arithmetic number, because the mean of its divisors is an integer number (301285055532).

Almost surely, 2^{1205140222122} is an apocalyptic number.

1205140222122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1205140222122 is a wasteful number, since it uses less digits than its factorization.

1205140222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200856703692.

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 1205140222122 its reverse (2212220415021), we get a palindrome (3417360637143).

The spelling of 1205140222122 in words is "one trillion, two hundred five billion, one hundred forty million, two hundred twenty-two thousand, one hundred twenty-two".