1210101212 has 24 divisors (see below), whose sum is σ = 2207976960. Its totient is φ = 579579840.

The previous prime is 1210101163. The next prime is 1210101229. The reversal of 1210101212 is 2121010121.

1210101212 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.

It is a junction number, because it is equal to n+sod(n) for n = 1210101193 and 1210101202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26339 + ... + 55802.

It is an arithmetic number, because the mean of its divisors is an integer number (91999040).

Almost surely, 2^1210101212 is an apocalyptic number.

It is an amenable number.

1210101212 is a deficient number, since it is larger than the sum of its proper divisors (997875748).

1210101212 is a wasteful number, since it uses less digits than its factorization.

1210101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82301 (or 82299 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1210101212 is about 34786.5090516424. The cubic root of 1210101212 is about 1065.6319471596.

Adding to 1210101212 its reverse (2121010121), we get a palindrome (3331111333).

It can be divided in two parts, 121010121 and 2, that multiplied together give a palindrome (242020242).

The spelling of 1210101212 in words is "one billion, two hundred ten million, one hundred one thousand, two hundred twelve".