133222221555 has 16 divisors (see below), whose sum is σ = 213160083360. Its totient is φ = 71050341888.

The previous prime is 133222221529. The next prime is 133222221593. The reversal of 133222221555 is 555122222331.

It is not a de Polignac number, because 133222221555 - 2⁹ = 133222221043 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1297689 + ... + 1396581.

It is an arithmetic number, because the mean of its divisors is an integer number (13322505210).

Almost surely, 2^133222221555 is an apocalyptic number.

133222221555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133222221555 is a deficient number, since it is larger than the sum of its proper divisors (79937861805).

133222221555 is an equidigital number, since it uses as much as digits as its factorization.

133222221555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188710.

The product of its digits is 36000, while the sum is 33.

Adding to 133222221555 its reverse (555122222331), we get a palindrome (688344443886).

The spelling of 133222221555 in words is "one hundred thirty-three billion, two hundred twenty-two million, two hundred twenty-one thousand, five hundred fifty-five".