1220111000198 has 16 divisors (see below), whose sum is σ = 1848925478400. Its totient is φ = 603808856136.

The previous prime is 1220111000197. The next prime is 1220111000201. The reversal of 1220111000198 is 8910001110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220111000197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1201598 + ... + 1970801.

It is an arithmetic number, because the mean of its divisors is an integer number (115557842400).

Almost surely, 2^{1220111000198} is an apocalyptic number.

1220111000198 is a deficient number, since it is larger than the sum of its proper divisors (628814478202).

1220111000198 is a wasteful number, since it uses less digits than its factorization.

1220111000198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3174371.

The product of its (nonzero) digits is 288, while the sum is 26.

The spelling of 1220111000198 in words is "one trillion, two hundred twenty billion, one hundred eleven million, one hundred ninety-eight", and thus it is an aban number.