100211120201021 has 4 divisors (see below), whose sum is σ = 101203309510044. Its totient is φ = 99218930892000.

The previous prime is 100211120200973. The next prime is 100211120201063. The reversal of 100211120201021 is 120102021112001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70224215640121 + 29986904560900 = 8379989^2 + 5476030^2 .

It is a cyclic number.

It is not a de Polignac number, because 100211120201021 - 2⁶ = 100211120200957 is a prime.

It is a super-2 number, since 2×100211120201021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100211120200987 and 100211120201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100211120201821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496094654360 + ... + 496094654561.

It is an arithmetic number, because the mean of its divisors is an integer number (25300827377511).

Almost surely, 2^{100211120201021} is an apocalyptic number.

It is an amenable number.

100211120201021 is a deficient number, since it is larger than the sum of its proper divisors (992189309023).

100211120201021 is an equidigital number, since it uses as much as digits as its factorization.

100211120201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992189309022.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100211120201021 its reverse (120102021112001), we get a palindrome (220313141313022).

The spelling of 100211120201021 in words is "one hundred trillion, two hundred eleven billion, one hundred twenty million, two hundred one thousand, twenty-one".