1121012100121 has 8 divisors (see below), whose sum is σ = 1170109448064. Its totient is φ = 1071944559840.

The previous prime is 1121012100107. The next prime is 1121012100127. The reversal of 1121012100121 is 1210012101211.

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 1121012100121 - 2⁹ = 1121012099609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121012100127) 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, 7375036 + ... + 7525501.

It is an arithmetic number, because the mean of its divisors is an integer number (146263681008).

Almost surely, 2^{1121012100121} is an apocalyptic number.

It is an amenable number.

1121012100121 is a deficient number, since it is larger than the sum of its proper divisors (49097347943).

1121012100121 is a wasteful number, since it uses less digits than its factorization.

1121012100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14903831.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1121012100121 its reverse (1210012101211), we get a palindrome (2331024201332).

The spelling of 1121012100121 in words is "one trillion, one hundred twenty-one billion, twelve million, one hundred thousand, one hundred twenty-one".