1021102010200 has 24 divisors (see below), whose sum is σ = 2374062174180. Its totient is φ = 408440804000.

The previous prime is 1021102010191. The next prime is 1021102010209. The reversal of 1021102010200 is 20102011201.

It is an interprime number because it is at equal distance from previous prime (1021102010191) and next prime (1021102010209).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021102010209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2552754826 + ... + 2552755225.

Almost surely, 2^{1021102010200} is an apocalyptic number.

1021102010200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021102010200 is an abundant number, since it is smaller than the sum of its proper divisors (1352960163980).

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

1021102010200 is a wasteful number, since it uses less digits than its factorization.

1021102010200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105510067 (or 5105510058 counting only the distinct ones).

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

Adding to 1021102010200 its reverse (20102011201), we get a palindrome (1041204021401).

The spelling of 1021102010200 in words is "one trillion, twenty-one billion, one hundred two million, ten thousand, two hundred".