212001011120121 has 8 divisors (see below), whose sum is σ = 282670855452960. Its totient is φ = 141332587100352.

The previous prime is 212001011120083. The next prime is 212001011120191. The reversal of 212001011120121 is 121021110100212.

It is a happy number.

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

It is not a de Polignac number, because 212001011120121 - 2⁶ = 212001011120057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212001011120121.

It is not an unprimeable number, because it can be changed into a prime (212001011120191) 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, 354729936 + ... + 355327073.

It is an arithmetic number, because the mean of its divisors is an integer number (35333856931620).

Almost surely, 2^{212001011120121} is an apocalyptic number.

It is an amenable number.

212001011120121 is a deficient number, since it is larger than the sum of its proper divisors (70669844332839).

212001011120121 is an equidigital number, since it uses as much as digits as its factorization.

212001011120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710156535.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212001011120121 its reverse (121021110100212), we get a palindrome (333022121220333).

The spelling of 212001011120121 in words is "two hundred twelve trillion, one billion, eleven million, one hundred twenty thousand, one hundred twenty-one".