1220432434011 has 12 divisors (see below), whose sum is σ = 2014682113392. Its totient is φ = 697389962256.

The previous prime is 1220432434003. The next prime is 1220432434061. The reversal of 1220432434011 is 1104342340221.

1220432434011 is a `hidden beast` number, since 1 + 220 + 4 + 3 + 2 + 434 + 0 + 1 + 1 = 666.

It is not a de Polignac number, because 1220432434011 - 2³ = 1220432434003 is a prime.

It is a super-3 number, since 3×1220432434011³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220432434061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9685971636 + ... + 9685971761.

It is an arithmetic number, because the mean of its divisors is an integer number (167890176116).

Almost surely, 2^{1220432434011} is an apocalyptic number.

1220432434011 is a deficient number, since it is larger than the sum of its proper divisors (794249679381).

1220432434011 is a wasteful number, since it uses less digits than its factorization.

1220432434011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19371943410 (or 19371943407 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1220432434011 its reverse (1104342340221), we get a palindrome (2324774774232).

The spelling of 1220432434011 in words is "one trillion, two hundred twenty billion, four hundred thirty-two million, four hundred thirty-four thousand, eleven".