102221020101 has 16 divisors (see below), whose sum is σ = 139991664384. Its totient is φ = 66299212224.

The previous prime is 102221020081. The next prime is 102221020103. The reversal of 102221020101 is 101020122201.

It is not a de Polignac number, because 102221020101 - 2¹⁸ = 102220757957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221020103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1316116 + ... + 1391618.

It is an arithmetic number, because the mean of its divisors is an integer number (8749479024).

Almost surely, 2^102221020101 is an apocalyptic number.

It is an amenable number.

102221020101 is a deficient number, since it is larger than the sum of its proper divisors (37770644283).

102221020101 is a wasteful number, since it uses less digits than its factorization.

102221020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87740.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102221020101 its reverse (101020122201), we get a palindrome (203241142302).

The spelling of 102221020101 in words is "one hundred two billion, two hundred twenty-one million, twenty thousand, one hundred one".