221020000102 has 8 divisors (see below), whose sum is σ = 361669091112. Its totient is φ = 100463636400.

The previous prime is 221020000099. The next prime is 221020000127. The reversal of 221020000102 is 201000020122.

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

It is a congruent number.

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, 5023181799 + ... + 5023181842.

It is an arithmetic number, because the mean of its divisors is an integer number (45208636389).

Almost surely, 2^221020000102 is an apocalyptic number.

221020000102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221020000102 is a deficient number, since it is larger than the sum of its proper divisors (140649091010).

221020000102 is a wasteful number, since it uses less digits than its factorization.

221020000102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10046363654.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 221020000102 its reverse (201000020122), we get a palindrome (422020020224).

The spelling of 221020000102 in words is "two hundred twenty-one billion, twenty million, one hundred two", and thus it is an aban number.