21211101032 has 64 divisors (see below), whose sum is σ = 45316661760. Its totient is φ = 9213265600.

The previous prime is 21211101029. The next prime is 21211101083. The reversal of 21211101032 is 23010111212.

It is a super-2 number, since 2×21211101032² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21211100998 and 21211101016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2349407 + ... + 2358417.

It is an arithmetic number, because the mean of its divisors is an integer number (708072840).

Almost surely, 2^21211101032 is an apocalyptic number.

21211101032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21211101032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22658330880).

21211101032 is an abundant number, since it is smaller than the sum of its proper divisors (24105560728).

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

21211101032 is a wasteful number, since it uses less digits than its factorization.

21211101032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10214 (or 10210 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21211101032 its reverse (23010111212), we get a palindrome (44221212244).

The spelling of 21211101032 in words is "twenty-one billion, two hundred eleven million, one hundred one thousand, thirty-two".