100020110021021 has 8 divisors (see below), whose sum is σ = 100598593633824. Its totient is φ = 99441630232560.

The previous prime is 100020110021011. The next prime is 100020110021063. The reversal of 100020110021021 is 120120011020001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100020110021021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100020110020993 and 100020110021011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100020110021011) 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, 64372130 + ... + 65907596.

It is an arithmetic number, because the mean of its divisors is an integer number (12574824204228).

Almost surely, 2^{100020110021021} is an apocalyptic number.

It is an amenable number.

100020110021021 is a deficient number, since it is larger than the sum of its proper divisors (578483612803).

100020110021021 is a wasteful number, since it uses less digits than its factorization.

100020110021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912171.

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

Adding to 100020110021021 its reverse (120120011020001), we get a palindrome (220140121041022).

The spelling of 100020110021021 in words is "one hundred trillion, twenty billion, one hundred ten million, twenty-one thousand, twenty-one".