21012233331122 has 8 divisors (see below), whose sum is σ = 34383654541872. Its totient is φ = 9551015150500.

The previous prime is 21012233331107. The next prime is 21012233331149. The reversal of 21012233331122 is 22113333221012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21012233331091 and 21012233331100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477550757504 + ... + 477550757547.

It is an arithmetic number, because the mean of its divisors is an integer number (4297956817734).

Almost surely, 2^{21012233331122} is an apocalyptic number.

21012233331122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21012233331122 is a deficient number, since it is larger than the sum of its proper divisors (13371421210750).

21012233331122 is a wasteful number, since it uses less digits than its factorization.

21012233331122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955101515064.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 21012233331122 its reverse (22113333221012), we get a palindrome (43125566552134).

It can be divided in two parts, 2101223 and 3331122, that added together give a palindrome (5432345).

The spelling of 21012233331122 in words is "twenty-one trillion, twelve billion, two hundred thirty-three million, three hundred thirty-one thousand, one hundred twenty-two".