1210210121212 has 6 divisors (see below), whose sum is σ = 2117867712128. Its totient is φ = 605105060604.

The previous prime is 1210210121201. The next prime is 1210210121221. The reversal of 1210210121212 is 2121210120121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151276265148 + ... + 151276265155.

Almost surely, 2^{1210210121212} is an apocalyptic number.

It is an amenable number.

1210210121212 is a deficient number, since it is larger than the sum of its proper divisors (907657590916).

1210210121212 is a wasteful number, since it uses less digits than its factorization.

1210210121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302552530307 (or 302552530305 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1210210121212 its reverse (2121210120121), we get a palindrome (3331420241333).

The spelling of 1210210121212 in words is "one trillion, two hundred ten billion, two hundred ten million, one hundred twenty-one thousand, two hundred twelve".