1000201121111 has 16 divisors (see below), whose sum is σ = 1072065402240. Its totient is φ = 930399138720.

The previous prime is 1000201121057. The next prime is 1000201121119. The reversal of 1000201121111 is 1111211020001.

It is a cyclic number.

It is not a de Polignac number, because 1000201121111 - 2³⁸ = 725323214167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000201121092 and 1000201121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000201121119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1688480 + ... + 2202581.

It is an arithmetic number, because the mean of its divisors is an integer number (67004087640).

Almost surely, 2^{1000201121111} is an apocalyptic number.

1000201121111 is a deficient number, since it is larger than the sum of its proper divisors (71864281129).

1000201121111 is a wasteful number, since it uses less digits than its factorization.

1000201121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3891326.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1000201121111 its reverse (1111211020001), we get a palindrome (2111412141112).

The spelling of 1000201121111 in words is "one trillion, two hundred one million, one hundred twenty-one thousand, one hundred eleven".