213311120022001 has 4 divisors (see below), whose sum is σ = 214845732396400. Its totient is φ = 211776507647604.

The previous prime is 213311120021977. The next prime is 213311120022043. The reversal of 213311120022001 is 100220021113312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213311120022001 - 2¹⁹ = 213311119497713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213311120022001.

It is not an unprimeable number, because it can be changed into a prime (213311120022071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 767306186991 + ... + 767306187268.

It is an arithmetic number, because the mean of its divisors is an integer number (53711433099100).

Almost surely, 2^{213311120022001} is an apocalyptic number.

It is an amenable number.

213311120022001 is a deficient number, since it is larger than the sum of its proper divisors (1534612374399).

213311120022001 is a wasteful number, since it uses less digits than its factorization.

213311120022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534612374398.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 213311120022001 its reverse (100220021113312), we get a palindrome (313531141135313).

The spelling of 213311120022001 in words is "two hundred thirteen trillion, three hundred eleven billion, one hundred twenty million, twenty-two thousand, one".