1220021220194 has 64 divisors (see below), whose sum is σ = 2266610688000. Its totient is φ = 481194973248.

The previous prime is 1220021220191. The next prime is 1220021220281. The reversal of 1220021220194 is 4910221200221.

It is not an unprimeable number, because it can be changed into a prime (1220021220191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209732 + ... + 1576080.

It is an arithmetic number, because the mean of its divisors is an integer number (35415792000).

Almost surely, 2^{1220021220194} is an apocalyptic number.

1220021220194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1220021220194 is a deficient number, since it is larger than the sum of its proper divisors (1046589467806).

1220021220194 is a wasteful number, since it uses less digits than its factorization.

1220021220194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366487.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 1220021220194 in words is "one trillion, two hundred twenty billion, twenty-one million, two hundred twenty thousand, one hundred ninety-four".