21202001132 has 36 divisors (see below), whose sum is σ = 40201284816. Its totient is φ = 9779664960.

The previous prime is 21202001131. The next prime is 21202001167. The reversal of 21202001132 is 23110020212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21202001131) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1240082 + ... + 1257062.

It is an arithmetic number, because the mean of its divisors is an integer number (1116702356).

Almost surely, 2^21202001132 is an apocalyptic number.

It is an amenable number.

21202001132 is a deficient number, since it is larger than the sum of its proper divisors (18999283684).

21202001132 is a wasteful number, since it uses less digits than its factorization.

21202001132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18858 (or 18843 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21202001132 its reverse (23110020212), we get a palindrome (44312021344).

The spelling of 21202001132 in words is "twenty-one billion, two hundred two million, one thousand, one hundred thirty-two".