100020121211001 has 8 divisors (see below), whose sum is σ = 134158725457344. Its totient is φ = 66280798886000.

The previous prime is 100020121210931. The next prime is 100020121211009. The reversal of 100020121211001 is 100112121020001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100020121211001 - 2⁷ = 100020121210873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100020121211009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99820479750 + ... + 99820480751.

It is an arithmetic number, because the mean of its divisors is an integer number (16769840682168).

Almost surely, 2^{100020121211001} is an apocalyptic number.

It is an amenable number.

100020121211001 is a deficient number, since it is larger than the sum of its proper divisors (34138604246343).

100020121211001 is a wasteful number, since it uses less digits than its factorization.

100020121211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199640960671.

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

Adding to 100020121211001 its reverse (100112121020001), we get a palindrome (200132242231002).

The spelling of 100020121211001 in words is "one hundred trillion, twenty billion, one hundred twenty-one million, two hundred eleven thousand, one".