20144220332 has 6 divisors (see below), whose sum is σ = 35252385588. Its totient is φ = 10072110164.

The previous prime is 20144220331. The next prime is 20144220361. The reversal of 20144220332 is 23302244102.

It is a super-2 number, since 2×20144220332² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20144220298 and 20144220307.

It is not an unprimeable number, because it can be changed into a prime (20144220331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2518027538 + ... + 2518027545.

It is an arithmetic number, because the mean of its divisors is an integer number (5875397598).

Almost surely, 2^20144220332 is an apocalyptic number.

It is an amenable number.

20144220332 is a deficient number, since it is larger than the sum of its proper divisors (15108165256).

20144220332 is a wasteful number, since it uses less digits than its factorization.

20144220332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5036055087 (or 5036055085 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20144220332 its reverse (23302244102), we get a palindrome (43446464434).

The spelling of 20144220332 in words is "twenty billion, one hundred forty-four million, two hundred twenty thousand, three hundred thirty-two".