21331033332122 has 16 divisors (see below), whose sum is σ = 32185881343392. Its totient is φ = 10602524736720.

The previous prime is 21331033332083. The next prime is 21331033332223. The reversal of 21331033332122 is 22123333013312.

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, 29269268 + ... + 29989199.

It is an arithmetic number, because the mean of its divisors is an integer number (2011617583962).

Almost surely, 2^{21331033332122} is an apocalyptic number.

21331033332122 is a deficient number, since it is larger than the sum of its proper divisors (10854848011270).

21331033332122 is a wasteful number, since it uses less digits than its factorization.

21331033332122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59259533.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 21331033332122 its reverse (22123333013312), we get a palindrome (43454366345434).

The spelling of 21331033332122 in words is "twenty-one trillion, three hundred thirty-one billion, thirty-three million, three hundred thirty-two thousand, one hundred twenty-two".