21999119041 has 9 divisors (see below), whose sum is σ = 22279829761. Its totient is φ = 21721907092.

The previous prime is 21999119003. The next prime is 21999119047. The reversal of 21999119041 is 14091199912.

The square root of 21999119041 is 148321.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 21999119041 - 2¹³ = 21999110849 is a prime.

It is a super-2 number, since 2×21999119041² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21999118982 and 21999119000.

It is not an unprimeable number, because it can be changed into a prime (21999119047) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12309750 + ... + 12311536.

Almost surely, 2^21999119041 is an apocalyptic number.

21999119041 is the 148321-st square number.

21999119041 is the 74161-st centered octagonal number.

It is an amenable number.

21999119041 is a deficient number, since it is larger than the sum of its proper divisors (280710720).

21999119041 is an frugal number, since it uses more digits than its factorization.

21999119041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740 (or 1870 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 46.

The spelling of 21999119041 in words is "twenty-one billion, nine hundred ninety-nine million, one hundred nineteen thousand, forty-one".