10021020021111 has 64 divisors (see below), whose sum is σ = 15364108615680. Its totient is φ = 5750366160000.

The previous prime is 10021020021107. The next prime is 10021020021121. The reversal of 10021020021111 is 11112002012001.

It is not a de Polignac number, because 10021020021111 - 2² = 10021020021107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021020021121) 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, 370326100 + ... + 370353158.

It is an arithmetic number, because the mean of its divisors is an integer number (240064197120).

Almost surely, 2^{10021020021111} is an apocalyptic number.

10021020021111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10021020021111 is a deficient number, since it is larger than the sum of its proper divisors (5343088594569).

10021020021111 is a wasteful number, since it uses less digits than its factorization.

10021020021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32028.

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

Adding to 10021020021111 its reverse (11112002012001), we get a palindrome (21133022033112).

The spelling of 10021020021111 in words is "ten trillion, twenty-one billion, twenty million, twenty-one thousand, one hundred eleven".