100021111200101 has 48 divisors (see below), whose sum is σ = 125968710067200. Its totient is φ = 78717100033152.

The previous prime is 100021111200097. The next prime is 100021111200103. The reversal of 100021111200101 is 101002111120001.

It is not a de Polignac number, because 100021111200101 - 2² = 100021111200097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021111200103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89495420 + ... + 90606138.

It is an arithmetic number, because the mean of its divisors is an integer number (2624348126400).

Almost surely, 2^{100021111200101} is an apocalyptic number.

It is an amenable number.

100021111200101 is a deficient number, since it is larger than the sum of its proper divisors (25947598867099).

100021111200101 is a wasteful number, since it uses less digits than its factorization.

100021111200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111498 (or 1111491 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 100021111200101 its reverse (101002111120001), we get a palindrome (201023222320102).

The spelling of 100021111200101 in words is "one hundred trillion, twenty-one billion, one hundred eleven million, two hundred thousand, one hundred one".