1110000020121 has 12 divisors (see below), whose sum is σ = 1604048208048. Its totient is φ = 739670084664.

The previous prime is 1110000020057. The next prime is 1110000020123. The reversal of 1110000020121 is 1210200000111.

It is a happy number.

It is not a de Polignac number, because 1110000020121 - 2⁶ = 1110000020057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1110000020123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27472755 + ... + 27513128.

It is an arithmetic number, because the mean of its divisors is an integer number (133670684004).

Almost surely, 2^{1110000020121} is an apocalyptic number.

It is an amenable number.

1110000020121 is a deficient number, since it is larger than the sum of its proper divisors (494048187927).

1110000020121 is a wasteful number, since it uses less digits than its factorization.

1110000020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54988132 (or 54988129 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1110000020121 its reverse (1210200000111), we get a palindrome (2320200020232).

The spelling of 1110000020121 in words is "one trillion, one hundred ten billion, twenty thousand, one hundred twenty-one".