21442161202132 has 24 divisors (see below), whose sum is σ = 40939578564192. Its totient is φ = 9745355114400.

The previous prime is 21442161202103. The next prime is 21442161202169. The reversal of 21442161202132 is 23120216124412.

It is a super-2 number, since 2×21442161202132² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21442161202094 and 21442161202103.

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, 26643903 + ... + 27436870.

It is an arithmetic number, because the mean of its divisors is an integer number (1705815773508).

Almost surely, 2^{21442161202132} is an apocalyptic number.

21442161202132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21442161202132 is a deficient number, since it is larger than the sum of its proper divisors (19497417362060).

21442161202132 is a wasteful number, since it uses less digits than its factorization.

21442161202132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54089799 (or 54089797 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 21442161202132 its reverse (23120216124412), we get a palindrome (44562377326544).

The spelling of 21442161202132 in words is "twenty-one trillion, four hundred forty-two billion, one hundred sixty-one million, two hundred two thousand, one hundred thirty-two".