221211140198 has 16 divisors (see below), whose sum is σ = 335556810864. Its totient is φ = 109364966880.

The previous prime is 221211140197. The next prime is 221211140231. The reversal of 221211140198 is 891041112122.

It is a super-2 number, since 2×221211140198² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221211140197) 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, 1451465 + ... + 1596612.

It is an arithmetic number, because the mean of its divisors is an integer number (20972300679).

Almost surely, 2^221211140198 is an apocalyptic number.

221211140198 is a deficient number, since it is larger than the sum of its proper divisors (114345670666).

221211140198 is a wasteful number, since it uses less digits than its factorization.

221211140198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048487.

The product of its (nonzero) digits is 2304, while the sum is 32.

The spelling of 221211140198 in words is "two hundred twenty-one billion, two hundred eleven million, one hundred forty thousand, one hundred ninety-eight".