211221210001032 has 768 divisors, whose sum is σ = 781561469030400. Its totient is φ = 51975024278400.

The previous prime is 211221210001003. The next prime is 211221210001033. The reversal of 211221210001032 is 230100012122112.

It is a super-2 number, since 2×211221210001032² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 211221210000996 and 211221210001014.

It is not an unprimeable number, because it can be changed into a prime (211221210001033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 486119157 + ... + 486553467.

It is an arithmetic number, because the mean of its divisors is an integer number (1017658162800).

Almost surely, 2^{211221210001032} is an apocalyptic number.

211221210001032 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 211221210001032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390780734515200).

211221210001032 is an abundant number, since it is smaller than the sum of its proper divisors (570340259029368).

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

211221210001032 is a wasteful number, since it uses less digits than its factorization.

211221210001032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434394 (or 434353 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 211221210001032 its reverse (230100012122112), we get a palindrome (441321222123144).

The spelling of 211221210001032 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred ten million, one thousand, thirty-two".