221011010102 has 8 divisors (see below), whose sum is σ = 332122579896. Its totient is φ = 110303483472.

The previous prime is 221011010083. The next prime is 221011010137. The reversal of 221011010102 is 201010110122.

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, 101009423 + ... + 101011610.

It is an arithmetic number, because the mean of its divisors is an integer number (41515322487).

Almost surely, 2^221011010102 is an apocalyptic number.

221011010102 is a deficient number, since it is larger than the sum of its proper divisors (111111569794).

221011010102 is a wasteful number, since it uses less digits than its factorization.

221011010102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202021582.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 221011010102 its reverse (201010110122), we get a palindrome (422021120224).

The spelling of 221011010102 in words is "two hundred twenty-one billion, eleven million, ten thousand, one hundred two".