1000211121212 has 12 divisors (see below), whose sum is σ = 1780036741560. Its totient is φ = 491629195056.

The previous prime is 1000211121167. The next prime is 1000211121263. The reversal of 1000211121212 is 2121211120001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2119091123 + ... + 2119091594.

It is an arithmetic number, because the mean of its divisors is an integer number (148336395130).

Almost surely, 2^{1000211121212} is an apocalyptic number.

It is an amenable number.

1000211121212 is a deficient number, since it is larger than the sum of its proper divisors (779825620348).

1000211121212 is a wasteful number, since it uses less digits than its factorization.

1000211121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238182780 (or 4238182778 counting only the distinct ones).

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

Adding to 1000211121212 its reverse (2121211120001), we get a palindrome (3121422241213).

The spelling of 1000211121212 in words is "one trillion, two hundred eleven million, one hundred twenty-one thousand, two hundred twelve".