1002021101100 has 108 divisors (see below), whose sum is σ = 3163375404280. Its totient is φ = 265283251200.

The previous prime is 1002021101093. The next prime is 1002021101183. The reversal of 1002021101100 is 11011202001.

It is a happy number.

1002021101100 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 35 ways as a sum of consecutive naturals, for example, 3879781 + ... + 4129980.

Almost surely, 2^{1002021101100} is an apocalyptic number.

1002021101100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002021101100 is an abundant number, since it is smaller than the sum of its proper divisors (2161354303180).

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

1002021101100 is a wasteful number, since it uses less digits than its factorization.

1002021101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8009920 (or 8009910 counting only the distinct ones).

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

Adding to 1002021101100 its reverse (11011202001), we get a palindrome (1013032303101).

The spelling of 1002021101100 in words is "one trillion, two billion, twenty-one million, one hundred one thousand, one hundred".