212010022111121 has 16 divisors (see below), whose sum is σ = 228387848304000. Its totient is φ = 195642108805248.

The previous prime is 212010022111081. The next prime is 212010022111123. The reversal of 212010022111121 is 121111220010212.

It is a cyclic number.

It is not a de Polignac number, because 212010022111121 - 2⁶ = 212010022111057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212010022111121.

It is not an unprimeable number, because it can be changed into a prime (212010022111123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1722910805 + ... + 1723033853.

It is an arithmetic number, because the mean of its divisors is an integer number (14274240519000).

Almost surely, 2^{212010022111121} is an apocalyptic number.

It is an amenable number.

212010022111121 is a deficient number, since it is larger than the sum of its proper divisors (16377826192879).

212010022111121 is a wasteful number, since it uses less digits than its factorization.

212010022111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162248.

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

Adding to 212010022111121 its reverse (121111220010212), we get a palindrome (333121242121333).

The spelling of 212010022111121 in words is "two hundred twelve trillion, ten billion, twenty-two million, one hundred eleven thousand, one hundred twenty-one".