10221212204140 has 96 divisors (see below), whose sum is σ = 25930053273600. Its totient is φ = 3306081381120.

The previous prime is 10221212204131. The next prime is 10221212204141. The reversal of 10221212204140 is 4140221212201.

It is not an unprimeable number, because it can be changed into a prime (10221212204141) 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, 7403091 + ... + 8674570.

It is an arithmetic number, because the mean of its divisors is an integer number (270104721600).

Almost surely, 2^{10221212204140} is an apocalyptic number.

10221212204140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221212204140 is an abundant number, since it is smaller than the sum of its proper divisors (15708841069460).

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

10221212204140 is a wasteful number, since it uses less digits than its factorization.

10221212204140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16077935 (or 16077933 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 10221212204140 its reverse (4140221212201), we get a palindrome (14361433416341).

The spelling of 10221212204140 in words is "ten trillion, two hundred twenty-one billion, two hundred twelve million, two hundred four thousand, one hundred forty".