1002011201100 has 216 divisors, whose sum is σ = 3865536860640. Its totient is φ = 211413335040.

The previous prime is 1002011200987. The next prime is 1002011201111. The reversal of 1002011201100 is 11021102001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6035385 + ... + 6199184.

Almost surely, 2^{1002011201100} is an apocalyptic number.

1002011201100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002011201100 is an abundant number, since it is smaller than the sum of its proper divisors (2863525659540).

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

1002011201100 is a wasteful number, since it uses less digits than its factorization.

1002011201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12234609 (or 12234599 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1002011201100 its reverse (11021102001), we get a palindrome (1013032303101).

Subtracting from 1002011201100 its reverse (11021102001), we obtain a palindrome (990990099099).

The spelling of 1002011201100 in words is "one trillion, two billion, eleven million, two hundred one thousand, one hundred".