1242203112200 has 48 divisors (see below), whose sum is σ = 2896167312000. Its totient is φ = 495497145920.

The previous prime is 1242203112193. The next prime is 1242203112239. The reversal of 1242203112200 is 22113022421.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8578640 + ... + 8722239.

It is an arithmetic number, because the mean of its divisors is an integer number (60336819000).

Almost surely, 2^{1242203112200} is an apocalyptic number.

1242203112200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242203112200 is an abundant number, since it is smaller than the sum of its proper divisors (1653964199800).

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

1242203112200 is a wasteful number, since it uses less digits than its factorization.

1242203112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17301254 (or 17301245 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1242203112200 its reverse (22113022421), we get a palindrome (1264316134621).

The spelling of 1242203112200 in words is "one trillion, two hundred forty-two billion, two hundred three million, one hundred twelve thousand, two hundred".