221210101023 has 16 divisors (see below), whose sum is σ = 308633785056. Its totient is φ = 140780315520.

The previous prime is 221210101003. The next prime is 221210101037. The reversal of 221210101023 is 320101012122.

It is not a de Polignac number, because 221210101023 - 2¹⁸ = 221209838879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221210100993 and 221210101011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221210101003) 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, 18794908 + ... + 18806673.

It is an arithmetic number, because the mean of its divisors is an integer number (19289611566).

Almost surely, 2^221210101023 is an apocalyptic number.

221210101023 is a deficient number, since it is larger than the sum of its proper divisors (87423684033).

221210101023 is a wasteful number, since it uses less digits than its factorization.

221210101023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37601674.

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

Adding to 221210101023 its reverse (320101012122), we get a palindrome (541311113145).

The spelling of 221210101023 in words is "two hundred twenty-one billion, two hundred ten million, one hundred one thousand, twenty-three".