212211120012121 has 8 divisors (see below), whose sum is σ = 219056828889600. Its totient is φ = 205365422939520.

The previous prime is 212211120012091. The next prime is 212211120012161. The reversal of 212211120012121 is 121210021112212.

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 a de Polignac number, because none of the positive numbers 2^k-212211120012121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212211120012161) 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, 47004300 + ... + 51320818.

It is an arithmetic number, because the mean of its divisors is an integer number (27382103611200).

Almost surely, 2^{212211120012121} is an apocalyptic number.

It is an amenable number.

212211120012121 is a deficient number, since it is larger than the sum of its proper divisors (6845708877479).

212211120012121 is a wasteful number, since it uses less digits than its factorization.

212211120012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5902439.

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

Adding to 212211120012121 its reverse (121210021112212), we get a palindrome (333421141124333).

The spelling of 212211120012121 in words is "two hundred twelve trillion, two hundred eleven billion, one hundred twenty million, twelve thousand, one hundred twenty-one".