211120202122121 has 8 divisors (see below), whose sum is σ = 216803773267200. Its totient is φ = 205511910065280.

The previous prime is 211120202122091. The next prime is 211120202122127. The reversal of 211120202122121 is 121221202021112.

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 211120202122121 - 2⁴² = 206722155611017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211120202122093 and 211120202122102.

It is not an unprimeable number, because it can be changed into a prime (211120202122127) 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, 18819766376 + ... + 18819777593.

It is an arithmetic number, because the mean of its divisors is an integer number (27100471658400).

Almost surely, 2^{211120202122121} is an apocalyptic number.

It is an amenable number.

211120202122121 is a deficient number, since it is larger than the sum of its proper divisors (5683571145079).

211120202122121 is an equidigital number, since it uses as much as digits as its factorization.

211120202122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37639544119.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211120202122121 its reverse (121221202021112), we get a palindrome (332341404143233).

The spelling of 211120202122121 in words is "two hundred eleven trillion, one hundred twenty billion, two hundred two million, one hundred twenty-two thousand, one hundred twenty-one".