1100012210121 has 48 divisors (see below), whose sum is σ = 1664382956544. Its totient is φ = 645258240000.

The previous prime is 1100012210119. The next prime is 1100012210137. The reversal of 1100012210121 is 1210122100011.

It is not a de Polignac number, because 1100012210121 - 2¹ = 1100012210119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100012210097 and 1100012210106.

It is not an unprimeable number, because it can be changed into a prime (1100012210821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2350921 + ... + 2779721.

It is an arithmetic number, because the mean of its divisors is an integer number (34674644928).

Almost surely, 2^{1100012210121} is an apocalyptic number.

1100012210121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1100012210121 is a deficient number, since it is larger than the sum of its proper divisors (564370746423).

1100012210121 is a wasteful number, since it uses less digits than its factorization.

1100012210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429054 (or 429043 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1100012210121 its reverse (1210122100011), we get a palindrome (2310134310132).

The spelling of 1100012210121 in words is "one trillion, one hundred billion, twelve million, two hundred ten thousand, one hundred twenty-one".