220505153101 has 8 divisors (see below), whose sum is σ = 228228077880. Its totient is φ = 212790181632.

The previous prime is 220505153059. The next prime is 220505153107. The reversal of 220505153101 is 101351505022.

It can be written as a sum of positive squares in 4 ways, for example, as 83434900201 + 137070252900 = 288851^2 + 370230^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220505153101 - 2²⁷ = 220370935373 is a prime.

It is a super-3 number, since 3×220505153101³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220505153107) 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, 1931880 + ... + 2042833.

It is an arithmetic number, because the mean of its divisors is an integer number (28528509735).

Almost surely, 2^220505153101 is an apocalyptic number.

It is an amenable number.

220505153101 is a deficient number, since it is larger than the sum of its proper divisors (7722924779).

220505153101 is a wasteful number, since it uses less digits than its factorization.

220505153101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3976655.

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 220505153101 its reverse (101351505022), we get a palindrome (321856658123).

The spelling of 220505153101 in words is "two hundred twenty billion, five hundred five million, one hundred fifty-three thousand, one hundred one".