102002201100 has 144 divisors (see below), whose sum is σ = 345177212800. Its totient is φ = 25768964160.

The previous prime is 102002201099. The next prime is 102002201101. The reversal of 102002201100 is 1102200201.

It is an interprime number because it is at equal distance from previous prime (102002201099) and next prime (102002201101).

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

It is not an unprimeable number, because it can be changed into a prime (102002201101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 942874 + ... + 1045473.

Almost surely, 2^102002201100 is an apocalyptic number.

102002201100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102002201100 is an abundant number, since it is smaller than the sum of its proper divisors (243175011700).

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

102002201100 is a wasteful number, since it uses less digits than its factorization.

102002201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988389 (or 1988376 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 102002201100 its reverse (1102200201), we get a palindrome (103104401301).

The spelling of 102002201100 in words is "one hundred two billion, two million, two hundred one thousand, one hundred".