211220122101 has 8 divisors (see below), whose sum is σ = 281678706624. Its totient is φ = 140787476160.

The previous prime is 211220122073. The next prime is 211220122121. The reversal of 211220122101 is 101221022112.

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

It is not a de Polignac number, because 211220122101 - 2¹⁷ = 211219991029 is a prime.

It is a super-2 number, since 2×211220122101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211220122121) 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, 6465636 + ... + 6498221.

It is an arithmetic number, because the mean of its divisors is an integer number (35209838328).

Almost surely, 2^211220122101 is an apocalyptic number.

It is an amenable number.

211220122101 is a deficient number, since it is larger than the sum of its proper divisors (70458584523).

211220122101 is a wasteful number, since it uses less digits than its factorization.

211220122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12969291.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211220122101 its reverse (101221022112), we get a palindrome (312441144213).

The spelling of 211220122101 in words is "two hundred eleven billion, two hundred twenty million, one hundred twenty-two thousand, one hundred one".