2101020201111 has 64 divisors (see below), whose sum is σ = 3101020433280. Its totient is φ = 1257343825920.

The previous prime is 2101020201089. The next prime is 2101020201113. The reversal of 2101020201111 is 1111020201012.

It is not a de Polignac number, because 2101020201111 - 2¹³ = 2101020192919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101020201113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 109526941 + ... + 109546121.

It is an arithmetic number, because the mean of its divisors is an integer number (48453444270).

Almost surely, 2^{2101020201111} is an apocalyptic number.

2101020201111 is a deficient number, since it is larger than the sum of its proper divisors (1000000232169).

2101020201111 is a wasteful number, since it uses less digits than its factorization.

2101020201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19716.

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

Adding to 2101020201111 its reverse (1111020201012), we get a palindrome (3212040402123).

Subtracting from 2101020201111 its reverse (1111020201012), we obtain a palindrome (990000000099).

The spelling of 2101020201111 in words is "two trillion, one hundred one billion, twenty million, two hundred one thousand, one hundred eleven".