1222152030 has 96 divisors (see below), whose sum is σ = 3582381600. Its totient is φ = 296271360.

The previous prime is 1222152023. The next prime is 1222152037. The reversal of 1222152030 is 302512221.

1222152030 is a `hidden beast` number, since 122 + 21 + 520 + 3 + 0 = 666.

1222152030 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1222152023) and next prime (1222152037).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1222151994 and 1222152012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222152037) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13966 + ... + 51374.

It is an arithmetic number, because the mean of its divisors is an integer number (37316475).

Almost surely, 2^1222152030 is an apocalyptic number.

1222152030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222152030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1791190800).

1222152030 is an abundant number, since it is smaller than the sum of its proper divisors (2360229570).

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

1222152030 is a wasteful number, since it uses less digits than its factorization.

1222152030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37447 (or 37430 counting only the distinct ones).

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

The square root of 1222152030 is about 34959.2910397222. The cubic root of 1222152030 is about 1069.1576419738.

Adding to 1222152030 its reverse (302512221), we get a palindrome (1524664251).

The spelling of 1222152030 in words is "one billion, two hundred twenty-two million, one hundred fifty-two thousand, thirty".