1000202101100 has 72 divisors (see below), whose sum is σ = 2199074698128. Its totient is φ = 394828128000.

The previous prime is 1000202101081. The next prime is 1000202101111. The reversal of 1000202101100 is 11012020001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2939414 + ... + 3261986.

Almost surely, 2^{1000202101100} is an apocalyptic number.

1000202101100 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 1000202101100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1099537349064).

1000202101100 is an abundant number, since it is smaller than the sum of its proper divisors (1198872597028).

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

1000202101100 is a wasteful number, since it uses less digits than its factorization.

1000202101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322995 (or 322988 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1000202101100 its reverse (11012020001), we get a palindrome (1011214121101).

The spelling of 1000202101100 in words is "one trillion, two hundred two million, one hundred one thousand, one hundred".