211223033220121 has 8 divisors (see below), whose sum is σ = 227471518198400. Its totient is φ = 194974628148432.

The previous prime is 211223033220049. The next prime is 211223033220217. The reversal of 211223033220121 is 121022330322112.

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 211223033220121 - 2¹³ = 211223033211929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211223033221121) 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, 14429505 + ... + 25112878.

It is an arithmetic number, because the mean of its divisors is an integer number (28433939774800).

Almost surely, 2^{211223033220121} is an apocalyptic number.

It is an amenable number.

211223033220121 is a deficient number, since it is larger than the sum of its proper divisors (16248484978279).

211223033220121 is a wasteful number, since it uses less digits than its factorization.

211223033220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39953295.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 211223033220121 its reverse (121022330322112), we get a palindrome (332245363542233).

The spelling of 211223033220121 in words is "two hundred eleven trillion, two hundred twenty-three billion, thirty-three million, two hundred twenty thousand, one hundred twenty-one".