1220120212194 has 96 divisors (see below), whose sum is σ = 2988307969920. Its totient is φ = 359098657632.

The previous prime is 1220120212183. The next prime is 1220120212211. The reversal of 1220120212194 is 4912120210221.

It is a super-3 number, since 3×1220120212194³ (a number of 37 digits) contains 333 as substring.

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 47 ways as a sum of consecutive naturals, for example, 238837 + ... + 1580279.

It is an arithmetic number, because the mean of its divisors is an integer number (31128208020).

Almost surely, 2^{1220120212194} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220120212194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1494153984960).

1220120212194 is an abundant number, since it is smaller than the sum of its proper divisors (1768187757726).

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

1220120212194 is a wasteful number, since it uses less digits than its factorization.

1220120212194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341513 (or 1341484 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 1220120212194 in words is "one trillion, two hundred twenty billion, one hundred twenty million, two hundred twelve thousand, one hundred ninety-four".