212010222221121 has 8 divisors (see below), whose sum is σ = 287314399513024. Its totient is φ = 139023096538320.

The previous prime is 212010222221107. The next prime is 212010222221129. The reversal of 212010222221121 is 121122222010212.

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

It is not a de Polignac number, because 212010222221121 - 2⁴⁷ = 71272733865793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212010222221129) 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, 579262902061 + ... + 579262902426.

It is an arithmetic number, because the mean of its divisors is an integer number (35914299939128).

Almost surely, 2^{212010222221121} is an apocalyptic number.

It is an amenable number.

212010222221121 is a deficient number, since it is larger than the sum of its proper divisors (75304177291903).

212010222221121 is a wasteful number, since it uses less digits than its factorization.

212010222221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158525804551.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212010222221121 its reverse (121122222010212), we get a palindrome (333132444231333).

The spelling of 212010222221121 in words is "two hundred twelve trillion, ten billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty-one".