20202111101011 has 32 divisors (see below), whose sum is σ = 23581133452800. Its totient is φ = 16949016944640.

The previous prime is 20202111100957. The next prime is 20202111101021. The reversal of 20202111101011 is 11010111120202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20202111101011 - 2⁷ = 20202111100883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20202111100982 and 20202111101000.

It is not an unprimeable number, because it can be changed into a prime (20202111101021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105028521 + ... + 105220693.

It is an arithmetic number, because the mean of its divisors is an integer number (736910420400).

Almost surely, 2^{20202111101011} is an apocalyptic number.

20202111101011 is a deficient number, since it is larger than the sum of its proper divisors (3379022351789).

20202111101011 is a wasteful number, since it uses less digits than its factorization.

20202111101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193339.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20202111101011 its reverse (11010111120202), we get a palindrome (31212222221213).

The spelling of 20202111101011 in words is "twenty trillion, two hundred two billion, one hundred eleven million, one hundred one thousand, eleven".