221210404012092 has 192 divisors, whose sum is σ = 595021059214848. Its totient is φ = 63366285312000.

The previous prime is 221210404012063. The next prime is 221210404012093. The reversal of 221210404012092 is 290210404012122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221210404012093) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17118348 + ... + 27119340.

It is an arithmetic number, because the mean of its divisors is an integer number (3099068016744).

Almost surely, 2^{221210404012092} is an apocalyptic number.

221210404012092 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221210404012092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297510529607424).

221210404012092 is an abundant number, since it is smaller than the sum of its proper divisors (373810655202756).

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

221210404012092 is a wasteful number, since it uses less digits than its factorization.

221210404012092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10001180 (or 10001178 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

Adding to 221210404012092 its sum of digits (30), we get a palindrome (221210404012122).

The spelling of 221210404012092 in words is "two hundred twenty-one trillion, two hundred ten billion, four hundred four million, twelve thousand, ninety-two".