1212001104 has 40 divisors (see below), whose sum is σ = 3141044992. Its totient is φ = 402704640.

The previous prime is 1212001039. The next prime is 1212001121. The reversal of 1212001104 is 4011002121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1212001104.

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, 25312 + ... + 55359.

Almost surely, 2^1212001104 is an apocalyptic number.

It is an amenable number.

1212001104 is an abundant number, since it is smaller than the sum of its proper divisors (1929043888).

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

1212001104 is a wasteful number, since it uses less digits than its factorization.

1212001104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80995 (or 80989 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1212001104 is about 34813.8062268405. The cubic root of 1212001104 is about 1066.1893459851.

Adding to 1212001104 its reverse (4011002121), we get a palindrome (5223003225).

The spelling of 1212001104 in words is "one billion, two hundred twelve million, one thousand, one hundred four".