10221432121 has 16 divisors (see below), whose sum is σ = 11103039360. Its totient is φ = 9373927680.

The previous prime is 10221431993. The next prime is 10221432131. The reversal of 10221432121 is 12123412201.

10221432121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10221432121 - 2⁷ = 10221431993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10221432131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64900 + ... + 157018.

It is an arithmetic number, because the mean of its divisors is an integer number (693939960).

Almost surely, 2^10221432121 is an apocalyptic number.

It is an amenable number.

10221432121 is a deficient number, since it is larger than the sum of its proper divisors (881607239).

10221432121 is a wasteful number, since it uses less digits than its factorization.

10221432121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92304.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 10221432121 its reverse (12123412201), we get a palindrome (22344844322).

The spelling of 10221432121 in words is "ten billion, two hundred twenty-one million, four hundred thirty-two thousand, one hundred twenty-one".