21002112000122 has 8 divisors (see below), whose sum is σ = 34367092363872. Its totient is φ = 9546414545500.

The previous prime is 21002112000101. The next prime is 21002112000173. The reversal of 21002112000122 is 22100021120012.

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 = 21002112000097 and 21002112000106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477320727254 + ... + 477320727297.

It is an arithmetic number, because the mean of its divisors is an integer number (4295886545484).

Almost surely, 2^{21002112000122} is an apocalyptic number.

21002112000122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21002112000122 is a deficient number, since it is larger than the sum of its proper divisors (13364980363750).

21002112000122 is a wasteful number, since it uses less digits than its factorization.

21002112000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954641454564.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21002112000122 its reverse (22100021120012), we get a palindrome (43102133120134).

The spelling of 21002112000122 in words is "twenty-one trillion, two billion, one hundred twelve million, one hundred twenty-two", and thus it is an aban number.