211220110120101 has 8 divisors (see below), whose sum is σ = 281626907448864. Its totient is φ = 140813359769040.

The previous prime is 211220110120069. The next prime is 211220110120109. The reversal of 211220110120101 is 101021011022112.

It is a happy number.

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

It is not a de Polignac number, because 211220110120101 - 2⁵ = 211220110120069 is a prime.

It is a super-2 number, since 2×211220110120101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211220110120109) 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 7 ways as a sum of consecutive naturals, for example, 600346 + ... + 20562116.

It is an arithmetic number, because the mean of its divisors is an integer number (35203363431108).

Almost surely, 2^{211220110120101} is an apocalyptic number.

It is an amenable number.

211220110120101 is a deficient number, since it is larger than the sum of its proper divisors (70406797328763).

211220110120101 is a wasteful number, since it uses less digits than its factorization.

211220110120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23488851.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211220110120101 its reverse (101021011022112), we get a palindrome (312241121142213).

The spelling of 211220110120101 in words is "two hundred eleven trillion, two hundred twenty billion, one hundred ten million, one hundred twenty thousand, one hundred one".