1011020202111 has 48 divisors (see below), whose sum is σ = 1395800985600. Its totient is φ = 650716012800.

The previous prime is 1011020202043. The next prime is 1011020202119. The reversal of 1011020202111 is 1112020201101.

It is not a de Polignac number, because 1011020202111 - 2²¹ = 1011018104959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011020202119) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 229306075 + ... + 229310483.

It is an arithmetic number, because the mean of its divisors is an integer number (29079187200).

Almost surely, 2^{1011020202111} is an apocalyptic number.

1011020202111 is a deficient number, since it is larger than the sum of its proper divisors (384780783489).

1011020202111 is a wasteful number, since it uses less digits than its factorization.

1011020202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4800 (or 4699 counting only the distinct ones).

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

Adding to 1011020202111 its reverse (1112020201101), we get a palindrome (2123040403212).

The spelling of 1011020202111 in words is "one trillion, eleven billion, twenty million, two hundred two thousand, one hundred eleven".