221301034140 has 48 divisors (see below), whose sum is σ = 621235873440. Its totient is φ = 58861896960.

The previous prime is 221301034069. The next prime is 221301034151. The reversal of 221301034140 is 41430103122.

It is a super-2 number, since 2×221301034140² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4717471 + ... + 4764150.

It is an arithmetic number, because the mean of its divisors is an integer number (12942414030).

Almost surely, 2^221301034140 is an apocalyptic number.

221301034140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221301034140 is an abundant number, since it is smaller than the sum of its proper divisors (399934839300).

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

221301034140 is a wasteful number, since it uses less digits than its factorization.

221301034140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9482022 (or 9482020 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 221301034140 its reverse (41430103122), we get a palindrome (262731137262).

The spelling of 221301034140 in words is "two hundred twenty-one billion, three hundred one million, thirty-four thousand, one hundred forty".