10120001010221 has 4 divisors (see below), whose sum is σ = 10446452655744. Its totient is φ = 9793549364700.

The previous prime is 10120001010187. The next prime is 10120001010319. The reversal of 10120001010221 is 12201010002101.

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 10120001010221 - 2²² = 10119996815917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120001010521) 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, 163225822715 + ... + 163225822776.

It is an arithmetic number, because the mean of its divisors is an integer number (2611613163936).

Almost surely, 2^{10120001010221} is an apocalyptic number.

It is an amenable number.

10120001010221 is a deficient number, since it is larger than the sum of its proper divisors (326451645523).

10120001010221 is an equidigital number, since it uses as much as digits as its factorization.

10120001010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326451645522.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10120001010221 its reverse (12201010002101), we get a palindrome (22321011012322).

The spelling of 10120001010221 in words is "ten trillion, one hundred twenty billion, one million, ten thousand, two hundred twenty-one".