1220410421532 has 72 divisors (see below), whose sum is σ = 3094472838912. Its totient is φ = 405545421600.

The previous prime is 1220410421513. The next prime is 1220410421533. The reversal of 1220410421532 is 2351240140221.

1220410421532 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 4 + 104 + 21 + 532 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1220410421496 and 1220410421505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220410421533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39237307 + ... + 39268397.

Almost surely, 2^{1220410421532} is an apocalyptic number.

1220410421532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220410421532 is an abundant number, since it is smaller than the sum of its proper divisors (1874062417380).

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

1220410421532 is a wasteful number, since it uses less digits than its factorization.

1220410421532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34439 (or 34434 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 1220410421532 its reverse (2351240140221), we get a palindrome (3571650561753).

The spelling of 1220410421532 in words is "one trillion, two hundred twenty billion, four hundred ten million, four hundred twenty-one thousand, five hundred thirty-two".