21133231331102 has 16 divisors (see below), whose sum is σ = 34582283068032. Its totient is φ = 9605838741720.

The previous prime is 21133231331089. The next prime is 21133231331111. The reversal of 21133231331102 is 20113313233112.

It is a super-2 number, since 2×21133231331102² (a number of 27 digits) contains 22 as substring.

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, 7539578 + ... + 9955485.

It is an arithmetic number, because the mean of its divisors is an integer number (2161392691752).

Almost surely, 2^{21133231331102} is an apocalyptic number.

21133231331102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21133231331102 is a deficient number, since it is larger than the sum of its proper divisors (13449051736930).

21133231331102 is a wasteful number, since it uses less digits than its factorization.

21133231331102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17549983.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 21133231331102 its reverse (20113313233112), we get a palindrome (41246544564214).

The spelling of 21133231331102 in words is "twenty-one trillion, one hundred thirty-three billion, two hundred thirty-one million, three hundred thirty-one thousand, one hundred two".