221012210211040 has 48 divisors (see below), whose sum is σ = 538984615881600. Its totient is φ = 85553113628160.

The previous prime is 221012210210993. The next prime is 221012210211041. The reversal of 221012210211040 is 40112012210122.

It is a junction number, because it is equal to n+sod(n) for n = 221012210210999 and 221012210211017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221012210211041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22279451715 + ... + 22279461634.

It is an arithmetic number, because the mean of its divisors is an integer number (11228846164200).

Almost surely, 2^{221012210211040} is an apocalyptic number.

221012210211040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221012210211040 is an abundant number, since it is smaller than the sum of its proper divisors (317972405670560).

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

221012210211040 is a wasteful number, since it uses less digits than its factorization.

221012210211040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44558913395 (or 44558913387 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221012210211040 its reverse (40112012210122), we get a palindrome (261124222421162).

The spelling of 221012210211040 in words is "two hundred twenty-one trillion, twelve billion, two hundred ten million, two hundred eleven thousand, forty".