21201945093292 has 12 divisors (see below), whose sum is σ = 37431752621256. Its totient is φ = 10507158630080.

The previous prime is 21201945093233. The next prime is 21201945093317. The reversal of 21201945093292 is 29239054910212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23453478634 + ... + 23453479537.

It is an arithmetic number, because the mean of its divisors is an integer number (3119312718438).

Almost surely, 2^{21201945093292} is an apocalyptic number.

It is an amenable number.

21201945093292 is a deficient number, since it is larger than the sum of its proper divisors (16229807527964).

21201945093292 is a wasteful number, since it uses less digits than its factorization.

21201945093292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46906958288 (or 46906958286 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 21201945093292 in words is "twenty-one trillion, two hundred one billion, nine hundred forty-five million, ninety-three thousand, two hundred ninety-two".