41221440020 has 48 divisors (see below), whose sum is σ = 89699554560. Its totient is φ = 15901232256.

The previous prime is 41221440017. The next prime is 41221440031. The reversal of 41221440020 is 2004412214.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 41221439974 and 41221440001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235427 + ... + 371306.

It is an arithmetic number, because the mean of its divisors is an integer number (1868740720).

Almost surely, 2^41221440020 is an apocalyptic number.

It is an amenable number.

41221440020 is an abundant number, since it is smaller than the sum of its proper divisors (48478114540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

41221440020 is a wasteful number, since it uses less digits than its factorization.

41221440020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606864 (or 606862 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 41221440020 its reverse (2004412214), we get a palindrome (43225852234).

The spelling of 41221440020 in words is "forty-one billion, two hundred twenty-one million, four hundred forty thousand, twenty".