221220414098 has 4 divisors (see below), whose sum is σ = 331830621150. Its totient is φ = 110610207048.

The previous prime is 221220414097. The next prime is 221220414109. The reversal of 221220414098 is 890414022122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 890414022122 = 2 ⋅445207011061.

It can be written as a sum of positive squares in only one way, i.e., 120733316089 + 100487098009 = 347467^2 + 316997^2 .

It is a super-2 number, since 2×221220414098² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221220414097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55305103523 + ... + 55305103526.

Almost surely, 2^221220414098 is an apocalyptic number.

221220414098 is a deficient number, since it is larger than the sum of its proper divisors (110610207052).

221220414098 is a wasteful number, since it uses less digits than its factorization.

221220414098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110610207051.

The product of its (nonzero) digits is 18432, while the sum is 35.

The spelling of 221220414098 in words is "two hundred twenty-one billion, two hundred twenty million, four hundred fourteen thousand, ninety-eight".