102221201121001 has 4 divisors (see below), whose sum is σ = 102225204013012. Its totient is φ = 102217198228992.

The previous prime is 102221201120977. The next prime is 102221201121113. The reversal of 102221201121001 is 100121102122201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59953259216601 + 42267941904400 = 7742949^2 + 6501380^2 .

It is a cyclic number.

It is not a de Polignac number, because 102221201121001 - 2⁴⁵ = 67036829032169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102221201521001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2001407700 + ... + 2001458773.

It is an arithmetic number, because the mean of its divisors is an integer number (25556301003253).

Almost surely, 2^{102221201121001} is an apocalyptic number.

It is an amenable number.

102221201121001 is a deficient number, since it is larger than the sum of its proper divisors (4002892011).

102221201121001 is an equidigital number, since it uses as much as digits as its factorization.

102221201121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002892010.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102221201121001 its reverse (100121102122201), we get a palindrome (202342303243202).

The spelling of 102221201121001 in words is "one hundred two trillion, two hundred twenty-one billion, two hundred one million, one hundred twenty-one thousand, one".