20205221488 has 40 divisors (see below), whose sum is σ = 39799046448. Its totient is φ = 9935304192.

The previous prime is 20205221461. The next prime is 20205221489. The reversal of 20205221488 is 88412250202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20205221489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380370 + ... + 430222.

Almost surely, 2^20205221488 is an apocalyptic number.

It is an amenable number.

20205221488 is a deficient number, since it is larger than the sum of its proper divisors (19593824960).

20205221488 is a wasteful number, since it uses less digits than its factorization.

20205221488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50281 (or 50275 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The spelling of 20205221488 in words is "twenty billion, two hundred five million, two hundred twenty-one thousand, four hundred eighty-eight".