1520213212 has 12 divisors (see below), whose sum is σ = 3040426480. Its totient is φ = 651519936.

The previous prime is 1520213203. The next prime is 1520213249. The reversal of 1520213212 is 2123120251.

1520213212 is an admirable number.

It is a super-2 number, since 2×1520213212² = 4622096419878713888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1520213212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27146637 + ... + 27146692.

Almost surely, 2^1520213212 is an apocalyptic number.

It is an amenable number.

1520213212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1520213212 is a wasteful number, since it uses less digits than its factorization.

1520213212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54293340 (or 54293338 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1520213212 is about 38989.9116695588. The cubic root of 1520213212 is about 1149.8331735318.

Adding to 1520213212 its reverse (2123120251), we get a palindrome (3643333463).

The spelling of 1520213212 in words is "one billion, five hundred twenty million, two hundred thirteen thousand, two hundred twelve".