21202210101 has 16 divisors (see below), whose sum is σ = 28586360000. Its totient is φ = 13976955648.

The previous prime is 21202210069. The next prime is 21202210111. The reversal of 21202210101 is 10101220212.

It is not a de Polignac number, because 21202210101 - 2⁵ = 21202210069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202210111) 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 15 ways as a sum of consecutive naturals, for example, 98205 + ... + 228141.

It is an arithmetic number, because the mean of its divisors is an integer number (1786647500).

Almost surely, 2^21202210101 is an apocalyptic number.

It is an amenable number.

21202210101 is a deficient number, since it is larger than the sum of its proper divisors (7384149899).

21202210101 is a wasteful number, since it uses less digits than its factorization.

21202210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130548.

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

Adding to 21202210101 its reverse (10101220212), we get a palindrome (31303430313).

The spelling of 21202210101 in words is "twenty-one billion, two hundred two million, two hundred ten thousand, one hundred one".