20111220120034 has 8 divisors (see below), whose sum is σ = 30166922327040. Its totient is φ = 10055579344356.

The previous prime is 20111220120031. The next prime is 20111220120049. The reversal of 20111220120034 is 43002102211102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20111220120034² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20111220119993 and 20111220120020.

It is not an unprimeable number, because it can be changed into a prime (20111220120031) 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 3 ways as a sum of consecutive naturals, for example, 14530474 + ... + 15854245.

It is an arithmetic number, because the mean of its divisors is an integer number (3770865290880).

Almost surely, 2^{20111220120034} is an apocalyptic number.

20111220120034 is a deficient number, since it is larger than the sum of its proper divisors (10055702207006).

20111220120034 is a wasteful number, since it uses less digits than its factorization.

20111220120034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30715664.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20111220120034 its reverse (43002102211102), we get a palindrome (63113322331136).

The spelling of 20111220120034 in words is "twenty trillion, one hundred eleven billion, two hundred twenty million, one hundred twenty thousand, thirty-four".