100021120020111 has 16 divisors (see below), whose sum is σ = 134753811999840. Its totient is φ = 65985292339200.

The previous prime is 100021120020089. The next prime is 100021120020131. The reversal of 100021120020111 is 111020021120001.

It is not a de Polignac number, because 100021120020111 - 2¹⁰ = 100021120019087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021120020131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87553866 + ... + 88688903.

It is an arithmetic number, because the mean of its divisors is an integer number (8422113249990).

Almost surely, 2^{100021120020111} is an apocalyptic number.

100021120020111 is a deficient number, since it is larger than the sum of its proper divisors (34732691979729).

100021120020111 is a wasteful number, since it uses less digits than its factorization.

100021120020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176244746.

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

Adding to 100021120020111 its reverse (111020021120001), we get a palindrome (211041141140112).

The spelling of 100021120020111 in words is "one hundred trillion, twenty-one billion, one hundred twenty million, twenty thousand, one hundred eleven".