1212020212 has 24 divisors (see below), whose sum is σ = 2313113600. Its totient is φ = 552311136.

The previous prime is 1212020209. The next prime is 1212020221. The reversal of 1212020212 is 2120202121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1212020192 and 1212020201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143412 + ... + 151627.

Almost surely, 2^1212020212 is an apocalyptic number.

It is an amenable number.

1212020212 is a deficient number, since it is larger than the sum of its proper divisors (1101093388).

1212020212 is a wasteful number, since it uses less digits than its factorization.

1212020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295135 (or 295133 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1212020212 is about 34814.0806571134. The cubic root of 1212020212 is about 1066.1949490160.

Adding to 1212020212 its reverse (2120202121), we get a palindrome (3332222333).

The spelling of 1212020212 in words is "one billion, two hundred twelve million, twenty thousand, two hundred twelve".