1212001112 has 32 divisors (see below), whose sum is σ = 2598420000. Its totient is φ = 519174144.

The previous prime is 1212001039. The next prime is 1212001121. The reversal of 1212001112 is 2111002121.

It is a junction number, because it is equal to n+sod(n) for n = 1212001093 and 1212001102.

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, 150008 + ... + 157880.

It is an arithmetic number, because the mean of its divisors is an integer number (81200625).

Almost surely, 2^1212001112 is an apocalyptic number.

It is an amenable number.

1212001112 is an abundant number, since it is smaller than the sum of its proper divisors (1386418888).

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

1212001112 is a wasteful number, since it uses less digits than its factorization.

1212001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10635 (or 10631 counting only the distinct ones).

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

The square root of 1212001112 is about 34813.8063417375. The cubic root of 1212001112 is about 1066.1893483310.

Adding to 1212001112 its reverse (2111002121), we get a palindrome (3323003233).

The spelling of 1212001112 in words is "one billion, two hundred twelve million, one thousand, one hundred twelve".