1021001201200 has 60 divisors (see below), whose sum is σ = 2453182794040. Its totient is φ = 408362618880.

The previous prime is 1021001201147. The next prime is 1021001201221. The reversal of 1021001201200 is 21021001201.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 4418947 + ... + 4644253.

Almost surely, 2^{1021001201200} is an apocalyptic number.

1021001201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021001201200 is an abundant number, since it is smaller than the sum of its proper divisors (1432181592840).

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

1021001201200 is a wasteful number, since it uses less digits than its factorization.

1021001201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236654 (or 236643 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1021001201200 its reverse (21021001201), we get a palindrome (1042022202401).

The spelling of 1021001201200 in words is "one trillion, twenty-one billion, one million, two hundred one thousand, two hundred".