102002221010 has 8 divisors (see below), whose sum is σ = 183603997836. Its totient is φ = 40800888400.

The previous prime is 102002221001. The next prime is 102002221051. The reversal of 102002221010 is 10122200201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 95491506289 + 6510714721 = 309017^2 + 80689^2 .

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 = 102002220982 and 102002221000.

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, 5100111041 + ... + 5100111060.

Almost surely, 2^102002221010 is an apocalyptic number.

102002221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102002221010 is a deficient number, since it is larger than the sum of its proper divisors (81601776826).

102002221010 is a wasteful number, since it uses less digits than its factorization.

102002221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10200222108.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102002221010 its reverse (10122200201), we get a palindrome (112124421211).

The spelling of 102002221010 in words is "one hundred two billion, two million, two hundred twenty-one thousand, ten".