211211202001121 has 8 divisors (see below), whose sum is σ = 241391671374144. Its totient is φ = 181032592757040.

The previous prime is 211211202001109. The next prime is 211211202001147. The reversal of 211211202001121 is 121100202112112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211211202001121 is a prime.

It is a super-2 number, since 2×211211202001121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 211211202001121.

It is not an unprimeable number, because it can be changed into a prime (211211202091121) 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, 464788910 + ... + 465243111.

It is an arithmetic number, because the mean of its divisors is an integer number (30173958921768).

Almost surely, 2^{211211202001121} is an apocalyptic number.

It is an amenable number.

211211202001121 is a deficient number, since it is larger than the sum of its proper divisors (30180469373023).

211211202001121 is an equidigital number, since it uses as much as digits as its factorization.

211211202001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930064471.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211211202001121 its reverse (121100202112112), we get a palindrome (332311404113233).

The spelling of 211211202001121 in words is "two hundred eleven trillion, two hundred eleven billion, two hundred two million, one thousand, one hundred twenty-one".