100021210020011 has 32 divisors (see below), whose sum is σ = 117126340277760. Its totient is φ = 83638570189824.

The previous prime is 100021210019981. The next prime is 100021210020023. The reversal of 100021210020011 is 110020012120001.

It is a cyclic number.

It is not a de Polignac number, because 100021210020011 - 2³⁰ = 100020136278187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100021210019974 and 100021210020001.

It is not an unprimeable number, because it can be changed into a prime (100021210022011) 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, 1000932896 + ... + 1001032818.

It is an arithmetic number, because the mean of its divisors is an integer number (3660198133680).

Almost surely, 2^{100021210020011} is an apocalyptic number.

100021210020011 is a deficient number, since it is larger than the sum of its proper divisors (17105130257749).

100021210020011 is a wasteful number, since it uses less digits than its factorization.

100021210020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115235.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100021210020011 its reverse (110020012120001), we get a palindrome (210041222140012).

The spelling of 100021210020011 in words is "one hundred trillion, twenty-one billion, two hundred ten million, twenty thousand, eleven".