203220223020 has 72 divisors (see below), whose sum is σ = 633095093904. Its totient is φ = 52727407488.

The previous prime is 203220222967. The next prime is 203220223061. The reversal of 203220223020 is 20322022302.

203220223020 is a `hidden beast` number, since 20 + 322 + 0 + 22 + 302 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 203220222984 and 203220223002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15250114 + ... + 15263433.

Almost surely, 2^203220223020 is an apocalyptic number.

203220223020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203220223020 is an abundant number, since it is smaller than the sum of its proper divisors (429874870884).

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

203220223020 is a wasteful number, since it uses less digits than its factorization.

203220223020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30513599 (or 30513594 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 203220223020 its reverse (20322022302), we get a palindrome (223542245322).

The spelling of 203220223020 in words is "two hundred three billion, two hundred twenty million, two hundred twenty-three thousand, twenty".