212002220111001 has 4 divisors (see below), whose sum is σ = 282669626814672. Its totient is φ = 141334813407332.

The previous prime is 212002220110949. The next prime is 212002220111023. The reversal of 212002220111001 is 100111022200212.

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 212002220111001 - 2⁶ = 212002220110937 is a prime.

It is a super-2 number, since 2×212002220111001² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212002220111041) 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, 35333703351831 + ... + 35333703351836.

It is an arithmetic number, because the mean of its divisors is an integer number (70667406703668).

Almost surely, 2^{212002220111001} is an apocalyptic number.

It is an amenable number.

212002220111001 is a deficient number, since it is larger than the sum of its proper divisors (70667406703671).

212002220111001 is an equidigital number, since it uses as much as digits as its factorization.

212002220111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70667406703670.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212002220111001 its reverse (100111022200212), we get a palindrome (312113242311213).

The spelling of 212002220111001 in words is "two hundred twelve trillion, two billion, two hundred twenty million, one hundred eleven thousand, one".