10221020412143 has 4 divisors (see below), whose sum is σ = 10350400417440. Its totient is φ = 10091640406848.

The previous prime is 10221020412139. The next prime is 10221020412149. The reversal of 10221020412143 is 34121402012201.

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 10221020412143 - 2² = 10221020412139 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 (10221020412149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64690002530 + ... + 64690002687.

It is an arithmetic number, because the mean of its divisors is an integer number (2587600104360).

Almost surely, 2^{10221020412143} is an apocalyptic number.

10221020412143 is a deficient number, since it is larger than the sum of its proper divisors (129380005297).

10221020412143 is an equidigital number, since it uses as much as digits as its factorization.

10221020412143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129380005296.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 10221020412143 its reverse (34121402012201), we get a palindrome (44342422424344).

The spelling of 10221020412143 in words is "ten trillion, two hundred twenty-one billion, twenty million, four hundred twelve thousand, one hundred forty-three".