21232140241222 has 16 divisors (see below), whose sum is σ = 32062608136800. Its totient is φ = 10544652900288.

The previous prime is 21232140241199. The next prime is 21232140241237. The reversal of 21232140241222 is 22214204123212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11302722 + ... + 13046677.

It is an arithmetic number, because the mean of its divisors is an integer number (2003913008550).

Almost surely, 2^{21232140241222} is an apocalyptic number.

21232140241222 is a deficient number, since it is larger than the sum of its proper divisors (10830467895578).

21232140241222 is a wasteful number, since it uses less digits than its factorization.

21232140241222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24352335.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 21232140241222 its reverse (22214204123212), we get a palindrome (43446344364434).

The spelling of 21232140241222 in words is "twenty-one trillion, two hundred thirty-two billion, one hundred forty million, two hundred forty-one thousand, two hundred twenty-two".