1012121212 has 6 divisors (see below), whose sum is σ = 1771212128. Its totient is φ = 506060604.

The previous prime is 1012121207. The next prime is 1012121221. The reversal of 1012121212 is 2121212101.

1012121212 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between odd and even.

1012121212 is a modest number, since divided by 121212 gives 1012 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1012121192 and 1012121201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126515148 + ... + 126515155.

Almost surely, 2^1012121212 is an apocalyptic number.

It is an amenable number.

1012121212 is a deficient number, since it is larger than the sum of its proper divisors (759090916).

1012121212 is a wasteful number, since it uses less digits than its factorization.

1012121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253030307 (or 253030305 counting only the distinct ones).

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

The square root of 1012121212 is about 31813.8525174176. The cubic root of 1012121212 is about 1004.0241881867.

Adding to 1012121212 its reverse (2121212101), we get a palindrome (3133333313).

It can be divided in two parts, 101 and 2121212, that multiplied together give a palindrome (214242412).

The spelling of 1012121212 in words is "one billion, twelve million, one hundred twenty-one thousand, two hundred twelve".