1201213210400 has 288 divisors, whose sum is σ = 3375575949312. Its totient is φ = 408880972800.

The previous prime is 1201213210331. The next prime is 1201213210433. The reversal of 1201213210400 is 40123121021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 841774487 + ... + 841775913.

It is an arithmetic number, because the mean of its divisors is an integer number (11720749824).

Almost surely, 2^{1201213210400} is an apocalyptic number.

1201213210400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201213210400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1687787974656).

1201213210400 is an abundant number, since it is smaller than the sum of its proper divisors (2174362738912).

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

1201213210400 is a wasteful number, since it uses less digits than its factorization.

1201213210400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432 (or 2419 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1201213210400 its reverse (40123121021), we get a palindrome (1241336331421).

The spelling of 1201213210400 in words is "one trillion, two hundred one billion, two hundred thirteen million, two hundred ten thousand, four hundred".