1212012010211 has 4 divisors (see below), whose sum is σ = 1264708184592. Its totient is φ = 1159315835832.

The previous prime is 1212012010171. The next prime is 1212012010291. The reversal of 1212012010211 is 1120102102121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212012010211 is a prime.

It is a super-2 number, since 2×1212012010211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212012010291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26348087156 + ... + 26348087201.

It is an arithmetic number, because the mean of its divisors is an integer number (316177046148).

Almost surely, 2^{1212012010211} is an apocalyptic number.

1212012010211 is a deficient number, since it is larger than the sum of its proper divisors (52696174381).

1212012010211 is an equidigital number, since it uses as much as digits as its factorization.

1212012010211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52696174380.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212012010211 its reverse (1120102102121), we get a palindrome (2332114112332).

The spelling of 1212012010211 in words is "one trillion, two hundred twelve billion, twelve million, ten thousand, two hundred eleven".