221210110102 has 16 divisors (see below), whose sum is σ = 346267809792. Its totient is φ = 105788226280.

The previous prime is 221210110097. The next prime is 221210110127. The reversal of 221210110102 is 201011012122.

It is a super-2 number, since 2×221210110102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466827 + ... + 812617.

It is an arithmetic number, because the mean of its divisors is an integer number (21641738112).

Almost surely, 2^221210110102 is an apocalyptic number.

221210110102 is a deficient number, since it is larger than the sum of its proper divisors (125057699690).

221210110102 is a wasteful number, since it uses less digits than its factorization.

221210110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359723.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221210110102 its reverse (201011012122), we get a palindrome (422221122224).

The spelling of 221210110102 in words is "two hundred twenty-one billion, two hundred ten million, one hundred ten thousand, one hundred two".