21102022020012 has 48 divisors (see below), whose sum is σ = 49423649207520. Its totient is φ = 7007538811392.

The previous prime is 21102022019959. The next prime is 21102022020109. The reversal of 21102022020012 is 21002022020112.

It is a junction number, because it is equal to n+sod(n) for n = 21102022019973 and 21102022020000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 875518 + ... + 6555194.

It is an arithmetic number, because the mean of its divisors is an integer number (1029659358490).

Almost surely, 2^{21102022020012} is an apocalyptic number.

It is an amenable number.

21102022020012 is an abundant number, since it is smaller than the sum of its proper divisors (28321627187508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21102022020012 is a wasteful number, since it uses less digits than its factorization.

21102022020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5680850 (or 5680848 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21102022020012 its reverse (21002022020112), we get a palindrome (42104044040124).

The spelling of 21102022020012 in words is "twenty-one trillion, one hundred two billion, twenty-two million, twenty thousand, twelve".