1201443122140 has 48 divisors (see below), whose sum is σ = 2579829460992. Its totient is φ = 469783151936.

The previous prime is 1201443122123. The next prime is 1201443122171. The reversal of 1201443122140 is 412213441021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4629 + ... + 1550131.

It is an arithmetic number, because the mean of its divisors is an integer number (53746447104).

Almost surely, 2^{1201443122140} is an apocalyptic number.

1201443122140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201443122140 is an abundant number, since it is smaller than the sum of its proper divisors (1378386338852).

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

1201443122140 is a wasteful number, since it uses less digits than its factorization.

1201443122140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546386 (or 1546384 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1201443122140 its reverse (412213441021), we get a palindrome (1613656563161).

The spelling of 1201443122140 in words is "one trillion, two hundred one billion, four hundred forty-three million, one hundred twenty-two thousand, one hundred forty".