201212202111121 has 8 divisors (see below), whose sum is σ = 210438828800640. Its totient is φ = 192025431261312.

The previous prime is 201212202111119. The next prime is 201212202111143. The reversal of 201212202111121 is 121111202212102.

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 201212202111121 - 2¹ = 201212202111119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201212202111161) 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, 9963949600 + ... + 9963969793.

It is an arithmetic number, because the mean of its divisors is an integer number (26304853600080).

Almost surely, 2^{201212202111121} is an apocalyptic number.

It is an amenable number.

201212202111121 is a deficient number, since it is larger than the sum of its proper divisors (9226626689519).

201212202111121 is a wasteful number, since it uses less digits than its factorization.

201212202111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19927919855.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 201212202111121 its reverse (121111202212102), we get a palindrome (322323404323223).

The spelling of 201212202111121 in words is "two hundred one trillion, two hundred twelve billion, two hundred two million, one hundred eleven thousand, one hundred twenty-one".