211201222020121 has 8 divisors (see below), whose sum is σ = 214094503224000. Its totient is φ = 208316242915632.

The previous prime is 211201222020091. The next prime is 211201222020163. The reversal of 211201222020121 is 121020222102112.

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 211201222020121 - 2⁹ = 211201222019609 is a prime.

It is a super-2 number, since 2×211201222020121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211201222020421) 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, 2075473621 + ... + 2075575378.

It is an arithmetic number, because the mean of its divisors is an integer number (26761812903000).

Almost surely, 2^{211201222020121} is an apocalyptic number.

It is an amenable number.

211201222020121 is a deficient number, since it is larger than the sum of its proper divisors (2893281203879).

211201222020121 is an equidigital number, since it uses as much as digits as its factorization.

211201222020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4151049695.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 211201222020121 its reverse (121020222102112), we get a palindrome (332221444122233).

The spelling of 211201222020121 in words is "two hundred eleven trillion, two hundred one billion, two hundred twenty-two million, twenty thousand, one hundred twenty-one".