220401100011505 has 16 divisors (see below), whose sum is σ = 302844527685504. Its totient is φ = 150842101887360.

The previous prime is 220401100011503. The next prime is 220401100011583. The reversal of 220401100011505 is 505110001104022.

It is not a de Polignac number, because 220401100011505 - 2¹ = 220401100011503 is a prime.

It is a super-2 number, since 2×220401100011505² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220401100011503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6043335207 + ... + 6043371676.

It is an arithmetic number, because the mean of its divisors is an integer number (18927782980344).

Almost surely, 2^{220401100011505} is an apocalyptic number.

It is an amenable number.

220401100011505 is a deficient number, since it is larger than the sum of its proper divisors (82443427673999).

220401100011505 is a wasteful number, since it uses less digits than its factorization.

220401100011505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12086707416.

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 220401100011505 its reverse (505110001104022), we get a palindrome (725511101115527).

The spelling of 220401100011505 in words is "two hundred twenty trillion, four hundred one billion, one hundred million, eleven thousand, five hundred five".