40221212430423 has 16 divisors (see below), whose sum is σ = 53657937216000. Its totient is φ = 26799316746240.

The previous prime is 40221212430379. The next prime is 40221212430431. The reversal of 40221212430423 is 32403421212204.

It is not a de Polignac number, because 40221212430423 - 2¹⁰ = 40221212429399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221212430433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77986903 + ... + 78500951.

It is an arithmetic number, because the mean of its divisors is an integer number (3353621076000).

Almost surely, 2^{40221212430423} is an apocalyptic number.

40221212430423 is a deficient number, since it is larger than the sum of its proper divisors (13436724785577).

40221212430423 is a wasteful number, since it uses less digits than its factorization.

40221212430423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528422.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 40221212430423 its reverse (32403421212204), we get a palindrome (72624633642627).

The spelling of 40221212430423 in words is "forty trillion, two hundred twenty-one billion, two hundred twelve million, four hundred thirty thousand, four hundred twenty-three".