1220142030 has 32 divisors (see below), whose sum is σ = 2940509088. Its totient is φ = 324019200.

The previous prime is 1220142023. The next prime is 1220142031. The reversal of 1220142030 is 302410221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220142031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77151 + ... + 91610.

It is an arithmetic number, because the mean of its divisors is an integer number (91890909).

Almost surely, 2^1220142030 is an apocalyptic number.

1220142030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220142030 is an abundant number, since it is smaller than the sum of its proper divisors (1720367058).

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

1220142030 is a wasteful number, since it uses less digits than its factorization.

1220142030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169012.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1220142030 is about 34930.5314875110. The cubic root of 1220142030 is about 1068.5711939163.

Adding to 1220142030 its reverse (302410221), we get a palindrome (1522552251).

The spelling of 1220142030 in words is "one billion, two hundred twenty million, one hundred forty-two thousand, thirty".