1200204202140 has 72 divisors (see below), whose sum is σ = 3718079426880. Its totient is φ = 313244782464.

The previous prime is 1200204202081. The next prime is 1200204202147. The reversal of 1200204202140 is 412024020021.

1200204202140 is a `hidden beast` number, since 1 + 200 + 2 + 0 + 420 + 2 + 1 + 40 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200204202147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70925595 + ... + 70942514.

It is an arithmetic number, because the mean of its divisors is an integer number (51639992040).

Almost surely, 2^{1200204202140} is an apocalyptic number.

1200204202140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200204202140 is an abundant number, since it is smaller than the sum of its proper divisors (2517875224740).

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

1200204202140 is a wasteful number, since it uses less digits than its factorization.

1200204202140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141868171 (or 141868166 counting only the distinct ones).

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

Adding to 1200204202140 its reverse (412024020021), we get a palindrome (1612228222161).

The spelling of 1200204202140 in words is "one trillion, two hundred billion, two hundred four million, two hundred two thousand, one hundred forty".