1220021432130 has 16 divisors (see below), whose sum is σ = 2928051437184. Its totient is φ = 325339048560.

The previous prime is 1220021432129. The next prime is 1220021432141. The reversal of 1220021432130 is 312341200221.

It is a junction number, because it is equal to n+sod(n) for n = 1220021432097 and 1220021432106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20333690506 + ... + 20333690565.

It is an arithmetic number, because the mean of its divisors is an integer number (183003214824).

Almost surely, 2^{1220021432130} is an apocalyptic number.

1220021432130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220021432130 is an abundant number, since it is smaller than the sum of its proper divisors (1708030005054).

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

1220021432130 is a wasteful number, since it uses less digits than its factorization.

1220021432130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40667381081.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1220021432130 its reverse (312341200221), we get a palindrome (1532362632351).

The spelling of 1220021432130 in words is "one trillion, two hundred twenty billion, twenty-one million, four hundred thirty-two thousand, one hundred thirty".