21201945093342 has 48 divisors (see below), whose sum is σ = 52074952871760. Its totient is φ = 6180324074496.

The previous prime is 21201945093341. The next prime is 21201945093401. The reversal of 21201945093342 is 24339054910212.

21201945093342 is a `hidden beast` number, since 2 + 1 + 20 + 1 + 94 + 509 + 3 + 34 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21201945093341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2384379843 + ... + 2384388734.

It is an arithmetic number, because the mean of its divisors is an integer number (1084894851495).

Almost surely, 2^{21201945093342} is an apocalyptic number.

21201945093342 is an abundant number, since it is smaller than the sum of its proper divisors (30873007778418).

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

21201945093342 is a wasteful number, since it uses less digits than its factorization.

21201945093342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4768768617 (or 4768768614 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 21201945093342 in words is "twenty-one trillion, two hundred one billion, nine hundred forty-five million, ninety-three thousand, three hundred forty-two".