221432271603620 has 96 divisors (see below), whose sum is σ = 579783756496896. Its totient is φ = 69013826006400.

The previous prime is 221432271603611. The next prime is 221432271603623. The reversal of 221432271603620 is 26306172234122.

It is not an unprimeable number, because it can be changed into a prime (221432271603623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22277825 + ... + 30645815.

It is an arithmetic number, because the mean of its divisors is an integer number (6039414130176).

Almost surely, 2^{221432271603620} is an apocalyptic number.

221432271603620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221432271603620 is an abundant number, since it is smaller than the sum of its proper divisors (358351484893276).

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

221432271603620 is a wasteful number, since it uses less digits than its factorization.

221432271603620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8385201 (or 8385199 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 221432271603620 in words is "two hundred twenty-one trillion, four hundred thirty-two billion, two hundred seventy-one million, six hundred three thousand, six hundred twenty".