20112021221032 has 192 divisors, whose sum is σ = 42040860971760. Its totient is φ = 9010520064000.

The previous prime is 20112021221029. The next prime is 20112021221051. The reversal of 20112021221032 is 23012212021102.

It can be written as a sum of positive squares in 24 ways, for example, as 19233013718116 + 879007502916 = 4385546^2 + 937554^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16746062032 + ... + 16746063232.

Almost surely, 2^{20112021221032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112021221032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21020430485880).

20112021221032 is an abundant number, since it is smaller than the sum of its proper divisors (21928839750728).

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

20112021221032 is a wasteful number, since it uses less digits than its factorization.

20112021221032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544 (or 2527 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20112021221032 its reverse (23012212021102), we get a palindrome (43124233242134).

The spelling of 20112021221032 in words is "twenty trillion, one hundred twelve billion, twenty-one million, two hundred twenty-one thousand, thirty-two".