210212122121011 has 8 divisors (see below), whose sum is σ = 210464795880864. Its totient is φ = 209959462965120.

The previous prime is 210212122120997. The next prime is 210212122121041. The reversal of 210212122121011 is 110121221212012.

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 not a de Polignac number, because 210212122121011 - 2⁹ = 210212122120499 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 210212122121011.

It is not an unprimeable number, because it can be changed into a prime (210212122121041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25292475 + ... + 32559691.

It is an arithmetic number, because the mean of its divisors is an integer number (26308099485108).

Almost surely, 2^{210212122121011} is an apocalyptic number.

210212122121011 is a deficient number, since it is larger than the sum of its proper divisors (252673759853).

210212122121011 is an equidigital number, since it uses as much as digits as its factorization.

210212122121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7301981.

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

Adding to 210212122121011 its reverse (110121221212012), we get a palindrome (320333343333023).

The spelling of 210212122121011 in words is "two hundred ten trillion, two hundred twelve billion, one hundred twenty-two million, one hundred twenty-one thousand, eleven".