101221321102 has 16 divisors (see below), whose sum is σ = 165745440000. Its totient is φ = 45978982840.

The previous prime is 101221321081. The next prime is 101221321109. The reversal of 101221321102 is 201123122101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221321109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501702 + ... + 1567657.

It is an arithmetic number, because the mean of its divisors is an integer number (10359090000).

Almost surely, 2^101221321102 is an apocalyptic number.

101221321102 is a deficient number, since it is larger than the sum of its proper divisors (64524118898).

101221321102 is a wasteful number, since it uses less digits than its factorization.

101221321102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3070871.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 101221321102 its reverse (201123122101), we get a palindrome (302344443203).

The spelling of 101221321102 in words is "one hundred one billion, two hundred twenty-one million, three hundred twenty-one thousand, one hundred two".