10221120100231 has 4 divisors (see below), whose sum is σ = 10665516626352. Its totient is φ = 9776723574112.

The previous prime is 10221120100211. The next prime is 10221120100237. The reversal of 10221120100231 is 13200102112201.

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

It is a cyclic number.

It is not a de Polignac number, because 10221120100231 - 2¹³ = 10221120092039 is a prime.

It is a super-2 number, since 2×10221120100231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221120100237) 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, 222198263026 + ... + 222198263071.

It is an arithmetic number, because the mean of its divisors is an integer number (2666379156588).

Almost surely, 2^{10221120100231} is an apocalyptic number.

10221120100231 is a deficient number, since it is larger than the sum of its proper divisors (444396526121).

10221120100231 is an equidigital number, since it uses as much as digits as its factorization.

10221120100231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444396526120.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 10221120100231 its reverse (13200102112201), we get a palindrome (23421222212432).

The spelling of 10221120100231 in words is "ten trillion, two hundred twenty-one billion, one hundred twenty million, one hundred thousand, two hundred thirty-one".