20120210001211 has 4 divisors (see below), whose sum is σ = 20120745906072. Its totient is φ = 20119674096352.

The previous prime is 20120210001169. The next prime is 20120210001251. The reversal of 20120210001211 is 11210001202102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20120210001211 - 2¹³ = 20120209993019 is a prime.

It is a super-2 number, since 2×20120210001211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20120210001191 and 20120210001200.

It is not an unprimeable number, because it can be changed into a prime (20120210001251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267896110 + ... + 267971203.

It is an arithmetic number, because the mean of its divisors is an integer number (5030186476518).

Almost surely, 2^{20120210001211} is an apocalyptic number.

20120210001211 is a deficient number, since it is larger than the sum of its proper divisors (535904861).

20120210001211 is an equidigital number, since it uses as much as digits as its factorization.

20120210001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535904860.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20120210001211 its reverse (11210001202102), we get a palindrome (31330211203313).

The spelling of 20120210001211 in words is "twenty trillion, one hundred twenty billion, two hundred ten million, one thousand, two hundred eleven".