212210121222201 has 8 divisors (see below), whose sum is σ = 282948152959584. Its totient is φ = 141472751816480.

The previous prime is 212210121222199. The next prime is 212210121222233. The reversal of 212210121222201 is 102222121012212.

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 212210121222201 - 2¹ = 212210121222199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212210121222251) 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, 164834835 + ... + 166117256.

It is an arithmetic number, because the mean of its divisors is an integer number (35368519119948).

Almost surely, 2^{212210121222201} is an apocalyptic number.

It is an amenable number.

212210121222201 is a deficient number, since it is larger than the sum of its proper divisors (70738031737383).

212210121222201 is a wasteful number, since it uses less digits than its factorization.

212210121222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331165831.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212210121222201 its reverse (102222121012212), we get a palindrome (314432242234413).

The spelling of 212210121222201 in words is "two hundred twelve trillion, two hundred ten billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred one".