21222301101 has 16 divisors (see below), whose sum is σ = 29966457024. Its totient is φ = 13313481984.

The previous prime is 21222301081. The next prime is 21222301109. The reversal of 21222301101 is 10110322212.

It is not a de Polignac number, because 21222301101 - 2¹¹ = 21222299053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222301109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261471 + ... + 332883.

It is an arithmetic number, because the mean of its divisors is an integer number (1872903564).

Almost surely, 2^21222301101 is an apocalyptic number.

It is an amenable number.

21222301101 is a deficient number, since it is larger than the sum of its proper divisors (8744155923).

21222301101 is a wasteful number, since it uses less digits than its factorization.

21222301101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77260.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21222301101 its reverse (10110322212), we get a palindrome (31332623313).

The spelling of 21222301101 in words is "twenty-one billion, two hundred twenty-two million, three hundred one thousand, one hundred one".