21403102022112 has 48 divisors (see below), whose sum is σ = 56185212120912. Its totient is φ = 7134104570880.

The previous prime is 21403102022051. The next prime is 21403102022131. The reversal of 21403102022112 is 21122020130412.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

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, 1477023 + ... + 6707294.

It is an arithmetic number, because the mean of its divisors is an integer number (1170525252519).

Almost surely, 2^{21403102022112} is an apocalyptic number.

It is an amenable number.

21403102022112 is an abundant number, since it is smaller than the sum of its proper divisors (34782110098800).

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

21403102022112 is a wasteful number, since it uses less digits than its factorization.

21403102022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8211571 (or 8211563 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21403102022112 its reverse (21122020130412), we get a palindrome (42525122152524).

The spelling of 21403102022112 in words is "twenty-one trillion, four hundred three billion, one hundred two million, twenty-two thousand, one hundred twelve".