221032200020 has 24 divisors (see below), whose sum is σ = 471095497824. Its totient is φ = 87093284256.

The previous prime is 221032199987. The next prime is 221032200031. The reversal of 221032200020 is 20002230122.

It is a junction number, because it is equal to n+sod(n) for n = 221032199968 and 221032200004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82473362 + ... + 82476041.

It is an arithmetic number, because the mean of its divisors is an integer number (19628979076).

Almost surely, 2^221032200020 is an apocalyptic number.

221032200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221032200020 is an abundant number, since it is smaller than the sum of its proper divisors (250063297804).

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

221032200020 is a wasteful number, since it uses less digits than its factorization.

221032200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164949479 (or 164949477 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 221032200020 its reverse (20002230122), we get a palindrome (241034430142).

The spelling of 221032200020 in words is "two hundred twenty-one billion, thirty-two million, two hundred thousand, twenty".