40221111203429 has 4 divisors (see below), whose sum is σ = 43315042834476. Its totient is φ = 37127179572384.

The previous prime is 40221111203417. The next prime is 40221111203447. The reversal of 40221111203429 is 92430211112204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14363326850404 + 25857784353025 = 3789898^2 + 5085055^2 .

It is a cyclic number.

It is not a de Polignac number, because 40221111203429 - 2²⁰ = 40221110154853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40221111203395 and 40221111203404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221111203479) 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, 1546965815504 + ... + 1546965815529.

It is an arithmetic number, because the mean of its divisors is an integer number (10828760708619).

Almost surely, 2^{40221111203429} is an apocalyptic number.

It is an amenable number.

40221111203429 is a deficient number, since it is larger than the sum of its proper divisors (3093931631047).

40221111203429 is a wasteful number, since it uses less digits than its factorization.

40221111203429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093931631046.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 40221111203429 in words is "forty trillion, two hundred twenty-one billion, one hundred eleven million, two hundred three thousand, four hundred twenty-nine".