121112221101122 has 16 divisors (see below), whose sum is σ = 192357509404320. Its totient is φ = 56993155199808.

The previous prime is 121112221101107. The next prime is 121112221101127. The reversal of 121112221101122 is 221101122211121.

It is a happy number.

It is a super-2 number, since 2×121112221101122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121112221101094 and 121112221101103.

It is not an unprimeable number, because it can be changed into a prime (121112221101127) 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, 23606288 + ... + 28275099.

It is an arithmetic number, because the mean of its divisors is an integer number (12022344337770).

Almost surely, 2^{121112221101122} is an apocalyptic number.

121112221101122 is a deficient number, since it is larger than the sum of its proper divisors (71245288303198).

121112221101122 is a wasteful number, since it uses less digits than its factorization.

121112221101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51950065.

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

Adding to 121112221101122 its reverse (221101122211121), we get a palindrome (342213343312243).

The spelling of 121112221101122 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred twenty-one million, one hundred one thousand, one hundred twenty-two".