10021221043043 has 32 divisors (see below), whose sum is σ = 12130182380544. Its totient is φ = 8092833420672.

The previous prime is 10021221043037. The next prime is 10021221043129. The reversal of 10021221043043 is 34034012212001.

10021221043043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10021221043043 - 2²⁴ = 10021204265827 is a prime.

It is a super-3 number, since 3×10021221043043³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021221043033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153110321 + ... + 153175757.

It is an arithmetic number, because the mean of its divisors is an integer number (379068199392).

Almost surely, 2^{10021221043043} is an apocalyptic number.

10021221043043 is a deficient number, since it is larger than the sum of its proper divisors (2108961337501).

10021221043043 is a wasteful number, since it uses less digits than its factorization.

10021221043043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79731.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 10021221043043 its reverse (34034012212001), we get a palindrome (44055233255044).

The spelling of 10021221043043 in words is "ten trillion, twenty-one billion, two hundred twenty-one million, forty-three thousand, forty-three".