44220002131 has 4 divisors (see below), whose sum is σ = 44220425872. Its totient is φ = 44219578392.

The previous prime is 44220002129. The next prime is 44220002153. The reversal of 44220002131 is 13120002244.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 44220002131 - 2¹ = 44220002129 is a prime.

It is a super-2 number, since 2×44220002131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44220002099 and 44220002108.

It is not an unprimeable number, because it can be changed into a prime (44220002171) 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, 67141 + ... + 304873.

It is an arithmetic number, because the mean of its divisors is an integer number (11055106468).

Almost surely, 2^44220002131 is an apocalyptic number.

44220002131 is a deficient number, since it is larger than the sum of its proper divisors (423741).

44220002131 is a wasteful number, since it uses less digits than its factorization.

44220002131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423740.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 44220002131 its reverse (13120002244), we get a palindrome (57340004375).

The spelling of 44220002131 in words is "forty-four billion, two hundred twenty million, two thousand, one hundred thirty-one".