1220262030 has 128 divisors (see below), whose sum is σ = 3523968000. Its totient is φ = 298691712.

The previous prime is 1220262011. The next prime is 1220262053. The reversal of 1220262030 is 302620221.

1220262030 is a `hidden beast` number, since 12 + 2 + 0 + 2 + 620 + 30 = 666.

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 = 1220261994 and 1220262012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 697617 + ... + 699363.

It is an arithmetic number, because the mean of its divisors is an integer number (27531000).

Almost surely, 2^1220262030 is an apocalyptic number.

1220262030 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 1220262030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1761984000).

1220262030 is an abundant number, since it is smaller than the sum of its proper divisors (2303705970).

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

1220262030 is a wasteful number, since it uses less digits than its factorization.

1220262030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975 (or 1969 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1220262030 is about 34932.2491403001. The cubic root of 1220262030 is about 1068.6062238108.

Adding to 1220262030 its reverse (302620221), we get a palindrome (1522882251).

The spelling of 1220262030 in words is "one billion, two hundred twenty million, two hundred sixty-two thousand, thirty".