122122100100111 has 8 divisors (see below), whose sum is σ = 167230263200304. Its totient is φ = 79214335200000.

The previous prime is 122122100100109. The next prime is 122122100100191. The reversal of 122122100100111 is 111001001221221.

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 122122100100111 - 2¹ = 122122100100109 is a prime.

It is a super-2 number, since 2×122122100100111² (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 (122122100100101) 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, 550099549890 + ... + 550099550111.

It is an arithmetic number, because the mean of its divisors is an integer number (20903782900038).

Almost surely, 2^{122122100100111} is an apocalyptic number.

122122100100111 is a deficient number, since it is larger than the sum of its proper divisors (45108163100193).

122122100100111 is a wasteful number, since it uses less digits than its factorization.

122122100100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100199100041.

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

Adding to 122122100100111 its reverse (111001001221221), we get a palindrome (233123101321332).

The spelling of 122122100100111 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, one hundred million, one hundred thousand, one hundred eleven".