43021220402 has 8 divisors (see below), whose sum is σ = 67928242800. Its totient is φ = 20378472804.

The previous prime is 43021220401. The next prime is 43021220447. The reversal of 43021220402 is 20402212034.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×43021220402² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43021220401) 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, 566068652 + ... + 566068727.

It is an arithmetic number, because the mean of its divisors is an integer number (8491030350).

Almost surely, 2^43021220402 is an apocalyptic number.

43021220402 is a deficient number, since it is larger than the sum of its proper divisors (24907022398).

43021220402 is a wasteful number, since it uses less digits than its factorization.

43021220402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132137400.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 43021220402 its reverse (20402212034), we get a palindrome (63423432436).

The spelling of 43021220402 in words is "forty-three billion, twenty-one million, two hundred twenty thousand, four hundred two".