1212421012 has 48 divisors (see below), whose sum is σ = 2376077760. Its totient is φ = 536659200.

The previous prime is 1212421003. The next prime is 1212421037. The reversal of 1212421012 is 2101242121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260062 + ... + 264682.

It is an arithmetic number, because the mean of its divisors is an integer number (49501620).

Almost surely, 2^1212421012 is an apocalyptic number.

It is an amenable number.

1212421012 is a deficient number, since it is larger than the sum of its proper divisors (1163656748).

1212421012 is a wasteful number, since it uses less digits than its factorization.

1212421012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4792 (or 4790 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1212421012 is about 34819.8364729072. The cubic root of 1212421012 is about 1066.3124618638.

Adding to 1212421012 its reverse (2101242121), we get a palindrome (3313663133).

It can be divided in two parts, 1212 and 421012, that added together give a palindrome (422224).

The spelling of 1212421012 in words is "one billion, two hundred twelve million, four hundred twenty-one thousand, twelve".