20112212320032 has 192 divisors, whose sum is σ = 63831414528000. Its totient is φ = 5416550092800.

The previous prime is 20112212320019. The next prime is 20112212320063. The reversal of 20112212320032 is 23002321221102.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 20112212319990 and 20112212320008.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1416969 + ... + 6498632.

It is an arithmetic number, because the mean of its divisors is an integer number (332455284000).

Almost surely, 2^{20112212320032} 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 20112212320032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31915707264000).

20112212320032 is an abundant number, since it is smaller than the sum of its proper divisors (43719202207968).

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

20112212320032 is a wasteful number, since it uses less digits than its factorization.

20112212320032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7915839 (or 7915831 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20112212320032 its reverse (23002321221102), we get a palindrome (43114533541134).

The spelling of 20112212320032 in words is "twenty trillion, one hundred twelve billion, two hundred twelve million, three hundred twenty thousand, thirty-two".