220241097 has 6 divisors (see below), whose sum is σ = 318126042. Its totient is φ = 146827392.

The previous prime is 220241039. The next prime is 220241101. The reversal of 220241097 is 790142022.

It can be written as a sum of positive squares in only one way, i.e., 138862656 + 81378441 = 11784^2 + 9021^2 .

It is not a de Polignac number, because 220241097 - 2¹² = 220237001 is a prime.

It is a super-2 number, since 2×220241097² = 97012281615526818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220241097.

It is not an unprimeable number, because it can be changed into a prime (220241017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12235608 + ... + 12235625.

It is an arithmetic number, because the mean of its divisors is an integer number (53021007).

Almost surely, 2^220241097 is an apocalyptic number.

It is an amenable number.

220241097 is a deficient number, since it is larger than the sum of its proper divisors (97884945).

220241097 is a wasteful number, since it uses less digits than its factorization.

220241097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24471239 (or 24471236 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 220241097 is about 14840.5221269334. The cubic root of 220241097 is about 603.9015169533.

The spelling of 220241097 in words is "two hundred twenty million, two hundred forty-one thousand, ninety-seven".