2100001202111 has 2 divisors, whose sum is σ = 2100001202112. Its totient is φ = 2100001202110.

The previous prime is 2100001202023. The next prime is 2100001202119. The reversal of 2100001202111 is 1112021000012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100001202111 - 2¹⁴ = 2100001185727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2100001202092 and 2100001202101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100001202119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050000601055 + 1050000601056.

It is an arithmetic number, because the mean of its divisors is an integer number (1050000601056).

Almost surely, 2^{2100001202111} is an apocalyptic number.

2100001202111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100001202111 is an equidigital number, since it uses as much as digits as its factorization.

2100001202111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2100001202111 its reverse (1112021000012), we get a palindrome (3212022202123).

The spelling of 2100001202111 in words is "two trillion, one hundred billion, one million, two hundred two thousand, one hundred eleven".