213121213322988 has 24 divisors (see below), whose sum is σ = 500333646006208. Its totient is φ = 70604573738256.

The previous prime is 213121213322987. The next prime is 213121213323013. The reversal of 213121213322988 is 889223312121312.

It is not an unprimeable number, because it can be changed into a prime (213121213322987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54478835806 + ... + 54478839717.

Almost surely, 2^{213121213322988} is an apocalyptic number.

It is an amenable number.

213121213322988 is an abundant number, since it is smaller than the sum of its proper divisors (287212432683220).

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

213121213322988 is a wasteful number, since it uses less digits than its factorization.

213121213322988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108957675693 (or 108957675691 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The spelling of 213121213322988 in words is "two hundred thirteen trillion, one hundred twenty-one billion, two hundred thirteen million, three hundred twenty-two thousand, nine hundred eighty-eight".