221202210102 has 8 divisors (see below), whose sum is σ = 442404420216. Its totient is φ = 73734070032.

The previous prime is 221202210091. The next prime is 221202210143. The reversal of 221202210102 is 201012202122.

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

221202210102 is an admirable number.

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, 18433517503 + ... + 18433517514.

It is an arithmetic number, because the mean of its divisors is an integer number (55300552527).

Almost surely, 2^221202210102 is an apocalyptic number.

221202210102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221202210102 is a wasteful number, since it uses less digits than its factorization.

221202210102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36867035022.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221202210102 its reverse (201012202122), we get a palindrome (422214412224).

The spelling of 221202210102 in words is "two hundred twenty-one billion, two hundred two million, two hundred ten thousand, one hundred two".