1000121002111 has 32 divisors (see below), whose sum is σ = 1345161904128. Its totient is φ = 719633840640.

The previous prime is 1000121002109. The next prime is 1000121002169. The reversal of 1000121002111 is 1112001210001.

It is not a de Polignac number, because 1000121002111 - 2¹ = 1000121002109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000121002411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7138495 + ... + 7277248.

It is an arithmetic number, because the mean of its divisors is an integer number (42036309504).

Almost surely, 2^{1000121002111} is an apocalyptic number.

1000121002111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1000121002111 is a deficient number, since it is larger than the sum of its proper divisors (345040902017).

1000121002111 is a wasteful number, since it uses less digits than its factorization.

1000121002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14415831.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1000121002111 its reverse (1112001210001), we get a palindrome (2112122212112).

The spelling of 1000121002111 in words is "one trillion, one hundred twenty-one million, two thousand, one hundred eleven".