321212214040 has 64 divisors (see below), whose sum is σ = 769935857760. Its totient is φ = 120185026560.

The previous prime is 321212214017. The next prime is 321212214053. The reversal of 321212214040 is 40412212123.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1338151 + ... + 1559830.

Almost surely, 2^321212214040 is an apocalyptic number.

It is an amenable number.

321212214040 is an abundant number, since it is smaller than the sum of its proper divisors (448723643720).

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

321212214040 is a wasteful number, since it uses less digits than its factorization.

321212214040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2898172 (or 2898168 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 321212214040 its reverse (40412212123), we get a palindrome (361624426163).

The spelling of 321212214040 in words is "three hundred twenty-one billion, two hundred twelve million, two hundred fourteen thousand, forty".