1222130205 has 24 divisors (see below), whose sum is σ = 2186695680. Its totient is φ = 630776160.

The previous prime is 1222130201. The next prime is 1222130213. The reversal of 1222130205 is 5020312221.

It is not a de Polignac number, because 1222130205 - 2² = 1222130201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222130201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 436645 + ... + 439434.

It is an arithmetic number, because the mean of its divisors is an integer number (91112320).

Almost surely, 2^1222130205 is an apocalyptic number.

1222130205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1222130205 is a deficient number, since it is larger than the sum of its proper divisors (964565475).

1222130205 is a wasteful number, since it uses less digits than its factorization.

1222130205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876121 (or 876118 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1222130205 is about 34958.9788895500. The cubic root of 1222130205 is about 1069.1512776526.

Adding to 1222130205 its reverse (5020312221), we get a palindrome (6242442426).

It can be divided in two parts, 122213020 and 5, that added together give a square (122213025 = 11055²).

The spelling of 1222130205 in words is "one billion, two hundred twenty-two million, one hundred thirty thousand, two hundred five".