100021212010001 has 16 divisors (see below), whose sum is σ = 103602547255680. Its totient is φ = 96499167515520.

The previous prime is 100021212009889. The next prime is 100021212010009. The reversal of 100021212010001 is 100010212120001.

It is a cyclic number.

It is not a de Polignac number, because 100021212010001 - 2¹⁴ = 100021211993617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100021212010009) 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, 9531890 + ... + 17055771.

It is an arithmetic number, because the mean of its divisors is an integer number (6475159203480).

Almost surely, 2^{100021212010001} is an apocalyptic number.

It is an amenable number.

100021212010001 is a deficient number, since it is larger than the sum of its proper divisors (3581335245679).

100021212010001 is an equidigital number, since it uses as much as digits as its factorization.

100021212010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26588776.

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

Adding to 100021212010001 its reverse (100010212120001), we get a palindrome (200031424130002).

The spelling of 100021212010001 in words is "one hundred trillion, twenty-one billion, two hundred twelve million, ten thousand, one".