2011200220121 has 8 divisors (see below), whose sum is σ = 2012645572224. Its totient is φ = 2009755366560.

The previous prime is 2011200220109. The next prime is 2011200220123. The reversal of 2011200220121 is 1210220021102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011200220121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011200220096 and 2011200220105.

It is not an unprimeable number, because it can be changed into a prime (2011200220123) 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, 8142380 + ... + 8385746.

It is an arithmetic number, because the mean of its divisors is an integer number (251580696528).

Almost surely, 2^{2011200220121} is an apocalyptic number.

It is an amenable number.

2011200220121 is a deficient number, since it is larger than the sum of its proper divisors (1445352103).

2011200220121 is a wasteful number, since it uses less digits than its factorization.

2011200220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249271.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2011200220121 its reverse (1210220021102), we get a palindrome (3221420241223).

The spelling of 2011200220121 in words is "two trillion, eleven billion, two hundred million, two hundred twenty thousand, one hundred twenty-one".