221201023042140 has 96 divisors (see below), whose sum is σ = 622576975910400. Its totient is φ = 58680930528000.

The previous prime is 221201023042081. The next prime is 221201023042151. The reversal of 221201023042140 is 41240320102122.

It is a self number, because there is not a number n which added to its sum of digits gives 221201023042140.

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, 71693290 + ... + 74714990.

It is an arithmetic number, because the mean of its divisors is an integer number (6485176832400).

Almost surely, 2^{221201023042140} is an apocalyptic number.

221201023042140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221201023042140 is an abundant number, since it is smaller than the sum of its proper divisors (401375952868260).

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

221201023042140 is a wasteful number, since it uses less digits than its factorization.

221201023042140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028043 (or 3028041 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 221201023042140 its reverse (41240320102122), we get a palindrome (262441343144262).

The spelling of 221201023042140 in words is "two hundred twenty-one trillion, two hundred one billion, twenty-three million, forty-two thousand, one hundred forty".