102100010210100 has 432 divisors, whose sum is σ = 401733567406080. Its totient is φ = 21147618412800.

The previous prime is 102100010210057. The next prime is 102100010210101. The reversal of 102100010210100 is 1012010001201.

It is a happy number.

It is a super-2 number, since 2×102100010210100² (a number of 29 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100010210101) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 15789636 + ... + 21295835.

It is an arithmetic number, because the mean of its divisors is an integer number (929938813440).

Almost surely, 2^{102100010210100} is an apocalyptic number.

102100010210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102100010210100 is an abundant number, since it is smaller than the sum of its proper divisors (299633557195980).

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

102100010210100 is a wasteful number, since it uses less digits than its factorization.

102100010210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37085540 (or 37085530 counting only the distinct ones).

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

Adding to 102100010210100 its reverse (1012010001201), we get a palindrome (103112020211301).

The spelling of 102100010210100 in words is "one hundred two trillion, one hundred billion, ten million, two hundred ten thousand, one hundred".