10112120201221 has 4 divisors (see below), whose sum is σ = 10327271694912. Its totient is φ = 9896968707532.

The previous prime is 10112120201171. The next prime is 10112120201231. The reversal of 10112120201221 is 12210202121101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10112120201221 - 2¹³ = 10112120193029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10112120201195 and 10112120201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112120201231) 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, 107575746775 + ... + 107575746868.

It is an arithmetic number, because the mean of its divisors is an integer number (2581817923728).

Almost surely, 2^{10112120201221} is an apocalyptic number.

It is an amenable number.

10112120201221 is a deficient number, since it is larger than the sum of its proper divisors (215151493691).

10112120201221 is an equidigital number, since it uses as much as digits as its factorization.

10112120201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215151493690.

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

Adding to 10112120201221 its reverse (12210202121101), we get a palindrome (22322322322322).

The spelling of 10112120201221 in words is "ten trillion, one hundred twelve billion, one hundred twenty million, two hundred one thousand, two hundred twenty-one".