155010222 has 12 divisors (see below), whose sum is σ = 335855520. Its totient is φ = 51670068.

The previous prime is 155010209. The next prime is 155010239. The reversal of 155010222 is 222010551.

155010222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 8611679 = 155010222 / (1 + 5 + 5 + 0 + 1 + 0 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 155010195 and 155010204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4305822 + ... + 4305857.

It is an arithmetic number, because the mean of its divisors is an integer number (27987960).

Almost surely, 2^155010222 is an apocalyptic number.

155010222 is an abundant number, since it is smaller than the sum of its proper divisors (180845298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155010222 is a wasteful number, since it uses less digits than its factorization.

155010222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8611687 (or 8611684 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 155010222 is about 12450.3101166196. The cubic root of 155010222 is about 537.1803437011.

Adding to 155010222 its reverse (222010551), we get a palindrome (377020773).

The spelling of 155010222 in words is "one hundred fifty-five million, ten thousand, two hundred twenty-two".