10221221204140 has 12 divisors (see below), whose sum is σ = 21464564528736. Its totient is φ = 4088488481648.

The previous prime is 10221221204101. The next prime is 10221221204171. The reversal of 10221221204140 is 4140212212201.

It is a super-2 number, since 2×10221221204140² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255530530084 + ... + 255530530123.

It is an arithmetic number, because the mean of its divisors is an integer number (1788713710728).

Almost surely, 2^{10221221204140} is an apocalyptic number.

10221221204140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221221204140 is an abundant number, since it is smaller than the sum of its proper divisors (11243343324596).

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

10221221204140 is a wasteful number, since it uses less digits than its factorization.

10221221204140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511061060216 (or 511061060214 counting only the distinct ones).

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

Adding to 10221221204140 its reverse (4140212212201), we get a palindrome (14361433416341).

The spelling of 10221221204140 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred four thousand, one hundred forty".