122112112220111 has 8 divisors (see below), whose sum is σ = 131505475707984. Its totient is φ = 112718766458880.

The previous prime is 122112112220101. The next prime is 122112112220113. The reversal of 122112112220111 is 111022211211221.

It is a happy number.

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 122112112220111 - 2¹⁴ = 122112112203727 is a prime.

It is a super-2 number, since 2×122112112220111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112112220113) 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, 12182351 + ... + 19814991.

It is an arithmetic number, because the mean of its divisors is an integer number (16438184463498).

Almost surely, 2^{122112112220111} is an apocalyptic number.

122112112220111 is a deficient number, since it is larger than the sum of its proper divisors (9393363487873).

122112112220111 is a wasteful number, since it uses less digits than its factorization.

122112112220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8863321.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 122112112220111 its reverse (111022211211221), we get a palindrome (233134323431332).

The spelling of 122112112220111 in words is "one hundred twenty-two trillion, one hundred twelve billion, one hundred twelve million, two hundred twenty thousand, one hundred eleven".