2211021020111 has 8 divisors (see below), whose sum is σ = 2244183684864. Its totient is φ = 2177863130520.

The previous prime is 2211021020107. The next prime is 2211021020137. The reversal of 2211021020111 is 1110201201122.

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

It is a cyclic number.

It is not a de Polignac number, because 2211021020111 - 2² = 2211021020107 is a prime.

It is a super-2 number, since 2×2211021020111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211021020171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255305 + ... + 2118306.

It is an arithmetic number, because the mean of its divisors is an integer number (280522960608).

Almost surely, 2^{2211021020111} is an apocalyptic number.

2211021020111 is a deficient number, since it is larger than the sum of its proper divisors (33162664753).

2211021020111 is a wasteful number, since it uses less digits than its factorization.

2211021020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387581.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2211021020111 its reverse (1110201201122), we get a palindrome (3321222221233).

The spelling of 2211021020111 in words is "two trillion, two hundred eleven billion, twenty-one million, twenty thousand, one hundred eleven".