3212123221100 has 72 divisors (see below), whose sum is σ = 7573848576000. Its totient is φ = 1177960276800.

The previous prime is 3212123221067. The next prime is 3212123221127. The reversal of 3212123221100 is 11223212123.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27208700 + ... + 27326499.

Almost surely, 2^{3212123221100} is an apocalyptic number.

It is an amenable number.

3212123221100 is an abundant number, since it is smaller than the sum of its proper divisors (4361725354900).

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

3212123221100 is a wasteful number, since it uses less digits than its factorization.

3212123221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54535263 (or 54535256 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 3212123221100 its reverse (11223212123), we get a palindrome (3223346433223).

The spelling of 3212123221100 in words is "three trillion, two hundred twelve billion, one hundred twenty-three million, two hundred twenty-one thousand, one hundred".