10120000211221 has 4 divisors (see below), whose sum is σ = 10131409456992. Its totient is φ = 10108590965452.

The previous prime is 10120000211141. The next prime is 10120000211267. The reversal of 10120000211221 is 12211200002101.

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 10120000211221 - 2⁷ = 10120000211093 is a prime.

It is a super-2 number, since 2×10120000211221² (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 (10120000218221) 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, 5704621555 + ... + 5704623328.

It is an arithmetic number, because the mean of its divisors is an integer number (2532852364248).

Almost surely, 2^{10120000211221} is an apocalyptic number.

It is an amenable number.

10120000211221 is a deficient number, since it is larger than the sum of its proper divisors (11409245771).

10120000211221 is an equidigital number, since it uses as much as digits as its factorization.

10120000211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11409245770.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10120000211221 its reverse (12211200002101), we get a palindrome (22331200213322).

The spelling of 10120000211221 in words is "ten trillion, one hundred twenty billion, two hundred eleven thousand, two hundred twenty-one".