1212001021104 has 80 divisors (see below), whose sum is σ = 3315531229920. Its totient is φ = 380195246080.

The previous prime is 1212001021097. The next prime is 1212001021117. The reversal of 1212001021104 is 4011201002121.

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 15 ways as a sum of consecutive naturals, for example, 8135962 + ... + 8283590.

It is an arithmetic number, because the mean of its divisors is an integer number (41444140374).

Almost surely, 2^{1212001021104} is an apocalyptic number.

It is an amenable number.

1212001021104 is an abundant number, since it is smaller than the sum of its proper divisors (2103530208816).

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

1212001021104 is a wasteful number, since it uses less digits than its factorization.

1212001021104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157718 (or 157712 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1212001021104 its reverse (4011201002121), we get a palindrome (5223202023225).

The spelling of 1212001021104 in words is "one trillion, two hundred twelve billion, one million, twenty-one thousand, one hundred four".