102000021010 has 8 divisors (see below), whose sum is σ = 183600037836. Its totient is φ = 40800008400.

The previous prime is 102000021007. The next prime is 102000021041. The reversal of 102000021010 is 10120000201.

It can be written as a sum of positive squares in 2 ways, for example, as 91143006201 + 10857014809 = 301899^2 + 104197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 102000020984 and 102000021002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5100001041 + ... + 5100001060.

Almost surely, 2^102000021010 is an apocalyptic number.

102000021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102000021010 is a deficient number, since it is larger than the sum of its proper divisors (81600016826).

102000021010 is a wasteful number, since it uses less digits than its factorization.

102000021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10200002108.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 102000021010 its reverse (10120000201), we get a palindrome (112120021211).

The spelling of 102000021010 in words is "one hundred two billion, twenty-one thousand, ten".