212004320241 has 16 divisors (see below), whose sum is σ = 331785398144. Its totient is φ = 117871127424.

The previous prime is 212004320219. The next prime is 212004320249. The reversal of 212004320241 is 142023400212.

It is not a de Polignac number, because 212004320241 - 2¹¹ = 212004318193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212004320249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136424140 + ... + 136425693.

It is an arithmetic number, because the mean of its divisors is an integer number (20736587384).

Almost surely, 2^212004320241 is an apocalyptic number.

212004320241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212004320241 is a deficient number, since it is larger than the sum of its proper divisors (119781077903).

212004320241 is a wasteful number, since it uses less digits than its factorization.

212004320241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272849880.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 212004320241 its reverse (142023400212), we get a palindrome (354027720453).

The spelling of 212004320241 in words is "two hundred twelve billion, four million, three hundred twenty thousand, two hundred forty-one".