32211213012 has 108 divisors (see below), whose sum is σ = 94762568628. Its totient is φ = 9186777600.

The previous prime is 32211212909. The next prime is 32211213037. The reversal of 32211213012 is 21031211223.

It can be written as a sum of positive squares in 2 ways, for example, as 15494274576 + 16716938436 = 124476^2 + 129294^2 .

It is a super-2 number, since 2×32211213012² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 143439 + ... + 291542.

It is an arithmetic number, because the mean of its divisors is an integer number (877431191).

Almost surely, 2^32211213012 is an apocalyptic number.

It is an amenable number.

32211213012 is an abundant number, since it is smaller than the sum of its proper divisors (62551355616).

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

32211213012 is a wasteful number, since it uses less digits than its factorization.

32211213012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435030 (or 435014 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 32211213012 its reverse (21031211223), we get a palindrome (53242424235).

The spelling of 32211213012 in words is "thirty-two billion, two hundred eleven million, two hundred thirteen thousand, twelve".