1143200120220 has 72 divisors (see below), whose sum is σ = 3650217938640. Its totient is φ = 288808450560.

The previous prime is 1143200120207. The next prime is 1143200120243. The reversal of 1143200120220 is 220210023411.

It is a happy number.

1143200120220 is a `hidden beast` number, since 1 + 1 + 4 + 320 + 0 + 120 + 220 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1143200120193 and 1143200120202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167131101 + ... + 167137940.

It is an arithmetic number, because the mean of its divisors is an integer number (50697471370).

Almost surely, 2^{1143200120220} is an apocalyptic number.

1143200120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143200120220 is an abundant number, since it is smaller than the sum of its proper divisors (2507017818420).

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

1143200120220 is a wasteful number, since it uses less digits than its factorization.

1143200120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334269075 (or 334269070 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1143200120220 its reverse (220210023411), we get a palindrome (1363410143631).

The spelling of 1143200120220 in words is "one trillion, one hundred forty-three billion, two hundred million, one hundred twenty thousand, two hundred twenty".