1220132310 has 128 divisors (see below), whose sum is σ = 3205509120. Its totient is φ = 296182656.

The previous prime is 1220132299. The next prime is 1220132339. The reversal of 1220132310 is 132310221.

It is a super-2 number, since 2×1220132310² = 2977445707811872200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1220132310.

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, 1641799 + ... + 1642541.

It is an arithmetic number, because the mean of its divisors is an integer number (25043040).

Almost surely, 2^1220132310 is an apocalyptic number.

1220132310 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 1220132310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1602754560).

1220132310 is an abundant number, since it is smaller than the sum of its proper divisors (1985376810).

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

1220132310 is a wasteful number, since it uses less digits than its factorization.

1220132310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1220132310 is about 34930.3923539373. The cubic root of 1220132310 is about 1068.5683563943.

Adding to 1220132310 its reverse (132310221), we get a palindrome (1352442531).

The spelling of 1220132310 in words is "one billion, two hundred twenty million, one hundred thirty-two thousand, three hundred ten".