22212060155 has 4 divisors (see below), whose sum is σ = 26654472192. Its totient is φ = 17769648120.

The previous prime is 22212060149. The next prime is 22212060197. The reversal of 22212060155 is 55106021222.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-22212060155 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2221206011 + ... + 2221206020.

It is an arithmetic number, because the mean of its divisors is an integer number (6663618048).

Almost surely, 2^22212060155 is an apocalyptic number.

22212060155 is a deficient number, since it is larger than the sum of its proper divisors (4442412037).

22212060155 is an equidigital number, since it uses as much as digits as its factorization.

22212060155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442412036.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 22212060155 its reverse (55106021222), we get a palindrome (77318081377).

The spelling of 22212060155 in words is "twenty-two billion, two hundred twelve million, sixty thousand, one hundred fifty-five".