21116204444492 has 24 divisors (see below), whose sum is σ = 37147489505280. Its totient is φ = 10502637975440.

The previous prime is 21116204444471. The next prime is 21116204444501. The reversal of 21116204444492 is 29444440261112.

It is a super-3 number, since 3×21116204444492³ (a number of 41 digits) contains 333 as substring.

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, 49468109 + ... + 49893147.

It is an arithmetic number, because the mean of its divisors is an integer number (1547812062720).

Almost surely, 2^{21116204444492} is an apocalyptic number.

It is an amenable number.

21116204444492 is a deficient number, since it is larger than the sum of its proper divisors (16031285060788).

21116204444492 is a wasteful number, since it uses less digits than its factorization.

21116204444492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490261 (or 490259 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 21116204444492 in words is "twenty-one trillion, one hundred sixteen billion, two hundred four million, four hundred forty-four thousand, four hundred ninety-two".