212010011012121 has 8 divisors (see below), whose sum is σ = 323062873923264. Its totient is φ = 121148577721200.

The previous prime is 212010011012117. The next prime is 212010011012141. The reversal of 212010011012121 is 121210110010212.

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 212010011012121 - 2² = 212010011012117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212010011012121.

It is not an unprimeable number, because it can be changed into a prime (212010011012141) 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, 5047857405030 + ... + 5047857405071.

It is an arithmetic number, because the mean of its divisors is an integer number (40382859240408).

Almost surely, 2^{212010011012121} is an apocalyptic number.

212010011012121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212010011012121 is a deficient number, since it is larger than the sum of its proper divisors (111052862911143).

212010011012121 is a wasteful number, since it uses less digits than its factorization.

212010011012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10095714810111.

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

Adding to 212010011012121 its reverse (121210110010212), we get a palindrome (333220121022333).

The spelling of 212010011012121 in words is "two hundred twelve trillion, ten billion, eleven million, twelve thousand, one hundred twenty-one".