1122112100121 has 8 divisors (see below), whose sum is σ = 1496763407424. Its totient is φ = 747767763120.

The previous prime is 1122112100117. The next prime is 1122112100141. The reversal of 1122112100121 is 1210012112211.

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 1122112100121 - 2² = 1122112100117 is a prime.

It is a super-2 number, since 2×1122112100121² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1122112100121.

It is not an unprimeable number, because it can be changed into a prime (1122112100141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76734045 + ... + 76748666.

It is an arithmetic number, because the mean of its divisors is an integer number (187095425928).

Almost surely, 2^{1122112100121} is an apocalyptic number.

It is an amenable number.

1122112100121 is a deficient number, since it is larger than the sum of its proper divisors (374651307303).

1122112100121 is a wasteful number, since it uses less digits than its factorization.

1122112100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153485151.

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

Adding to 1122112100121 its reverse (1210012112211), we get a palindrome (2332124212332).

The spelling of 1122112100121 in words is "one trillion, one hundred twenty-two billion, one hundred twelve million, one hundred thousand, one hundred twenty-one".