21202111032 has 16 divisors (see below), whose sum is σ = 53005277640. Its totient is φ = 7067370336.

The previous prime is 21202111031. The next prime is 21202111037. The reversal of 21202111032 is 23011120212.

It is a super-2 number, since 2×21202111032² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202111031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441710623 + ... + 441710670.

Almost surely, 2^21202111032 is an apocalyptic number.

It is an amenable number.

21202111032 is an abundant number, since it is smaller than the sum of its proper divisors (31803166608).

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

21202111032 is a wasteful number, since it uses less digits than its factorization.

21202111032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883421302 (or 883421298 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21202111032 its reverse (23011120212), we get a palindrome (44213231244).

The spelling of 21202111032 in words is "twenty-one billion, two hundred two million, one hundred eleven thousand, thirty-two".