1212001098 has 96 divisors (see below), whose sum is σ = 3088834560. Its totient is φ = 310279200.

The previous prime is 1212001039. The next prime is 1212001121. The reversal of 1212001098 is 8901002121.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 359143 + ... + 362501.

It is an arithmetic number, because the mean of its divisors is an integer number (32175360).

Almost surely, 2^1212001098 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212001098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1544417280).

1212001098 is an abundant number, since it is smaller than the sum of its proper divisors (1876833462).

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

1212001098 is a wasteful number, since it uses less digits than its factorization.

1212001098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3464 (or 3453 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 1212001098 is about 34813.8061406678. The cubic root of 1212001098 is about 1066.1893442257.

The spelling of 1212001098 in words is "one billion, two hundred twelve million, one thousand, ninety-eight".