200421221208 has 32 divisors (see below), whose sum is σ = 539595596400. Its totient is φ = 61668067968.

The previous prime is 200421221207. The next prime is 200421221239. The reversal of 200421221208 is 802122124002.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200421221201) 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, 321187543 + ... + 321188166.

Almost surely, 2^200421221208 is an apocalyptic number.

It is an amenable number.

200421221208 is an abundant number, since it is smaller than the sum of its proper divisors (339174375192).

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

200421221208 is a wasteful number, since it uses less digits than its factorization.

200421221208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642375731 (or 642375727 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The spelling of 200421221208 in words is "two hundred billion, four hundred twenty-one million, two hundred twenty-one thousand, two hundred eight".