20120021112011 has 8 divisors (see below), whose sum is σ = 20227519334880. Its totient is φ = 20012577092928.

The previous prime is 20120021111951. The next prime is 20120021112041. The reversal of 20120021112011 is 11021112002102.

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

It is a cyclic number.

It is not a de Polignac number, because 20120021112011 - 2¹⁴ = 20120021095627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120021112041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12806471 + ... + 14291456.

It is an arithmetic number, because the mean of its divisors is an integer number (2528439916860).

Almost surely, 2^{20120021112011} is an apocalyptic number.

20120021112011 is a deficient number, since it is larger than the sum of its proper divisors (107498222869).

20120021112011 is a wasteful number, since it uses less digits than its factorization.

20120021112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27101893.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20120021112011 its reverse (11021112002102), we get a palindrome (31141133114113).

The spelling of 20120021112011 in words is "twenty trillion, one hundred twenty billion, twenty-one million, one hundred twelve thousand, eleven".