212210221002001 has 8 divisors (see below), whose sum is σ = 213881680788480. Its totient is φ = 210538769233968.

The previous prime is 212210221001969. The next prime is 212210221002007. The reversal of 212210221002001 is 100200122012212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212210221002001 - 2⁵ = 212210221001969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212210221002007) 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, 58235250 + ... + 61771876.

It is an arithmetic number, because the mean of its divisors is an integer number (26735210098560).

Almost surely, 2^{212210221002001} is an apocalyptic number.

It is an amenable number.

212210221002001 is a deficient number, since it is larger than the sum of its proper divisors (1671459786479).

212210221002001 is a wasteful number, since it uses less digits than its factorization.

212210221002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009223.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212210221002001 its reverse (100200122012212), we get a palindrome (312410343014213).

The spelling of 212210221002001 in words is "two hundred twelve trillion, two hundred ten billion, two hundred twenty-one million, two thousand, one".