2101202021011 has 8 divisors (see below), whose sum is σ = 2225017553040. Its totient is φ = 1977410423808.

The previous prime is 2101202020937. The next prime is 2101202021069. The reversal of 2101202021011 is 1101202021012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2101202021011 - 2¹¹ = 2101202018963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101202020982 and 2101202021000.

It is not an unprimeable number, because it can be changed into a prime (2101202022011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5802801 + ... + 6154258.

It is an arithmetic number, because the mean of its divisors is an integer number (278127194130).

Almost surely, 2^{2101202021011} is an apocalyptic number.

2101202021011 is a deficient number, since it is larger than the sum of its proper divisors (123815532029).

2101202021011 is a wasteful number, since it uses less digits than its factorization.

2101202021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11967413.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2101202021011 its reverse (1101202021012), we get a palindrome (3202404042023).

Subtracting from 2101202021011 its reverse (1101202021012), we obtain a palindrome (999999999999).

The spelling of 2101202021011 in words is "two trillion, one hundred one billion, two hundred two million, twenty-one thousand, eleven".