1212001021196 has 24 divisors (see below), whose sum is σ = 2425499354880. Its totient is φ = 519108156432.

The previous prime is 1212001021163. The next prime is 1212001021213. The reversal of 1212001021196 is 6911201002121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13322720 + ... + 13413383.

It is an arithmetic number, because the mean of its divisors is an integer number (101062473120).

Almost surely, 2^{1212001021196} is an apocalyptic number.

It is an amenable number.

1212001021196 is an abundant number, since it is smaller than the sum of its proper divisors (1213498333684).

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

1212001021196 is a wasteful number, since it uses less digits than its factorization.

1212001021196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26737733 (or 26737731 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 1212001021196 in words is "one trillion, two hundred twelve billion, one million, twenty-one thousand, one hundred ninety-six".