221421032030 has 64 divisors (see below), whose sum is σ = 462377522880. Its totient is φ = 75449395200.

The previous prime is 221421032023. The next prime is 221421032093. The reversal of 221421032030 is 30230124122.

221421032030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221421031993 and 221421032011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169700 + ... + 686760.

It is an arithmetic number, because the mean of its divisors is an integer number (7224648795).

Almost surely, 2^221421032030 is an apocalyptic number.

221421032030 is an abundant number, since it is smaller than the sum of its proper divisors (240956490850).

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

221421032030 is a wasteful number, since it uses less digits than its factorization.

221421032030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517325.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 221421032030 its reverse (30230124122), we get a palindrome (251651156152).

The spelling of 221421032030 in words is "two hundred twenty-one billion, four hundred twenty-one million, thirty-two thousand, thirty".