102100221000010 has 16 divisors (see below), whose sum is σ = 183964731215976. Its totient is φ = 40799125418688.

The previous prime is 102100221000007. The next prime is 102100221000049. The reversal of 102100221000010 is 10000122001201.

It can be written as a sum of positive squares in 4 ways, for example, as 92362844292481 + 9737376707529 = 9610559^2 + 3120477^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5120362197 + ... + 5120382136.

Almost surely, 2^{102100221000010} is an apocalyptic number.

102100221000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102100221000010 is a deficient number, since it is larger than the sum of its proper divisors (81864510215966).

102100221000010 is a wasteful number, since it uses less digits than its factorization.

102100221000010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10240745337.

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

Adding to 102100221000010 its reverse (10000122001201), we get a palindrome (112100343001211).

The spelling of 102100221000010 in words is "one hundred two trillion, one hundred billion, two hundred twenty-one million, ten", and thus it is an aban number.