100211211110021 has 8 divisors (see below), whose sum is σ = 109338491276544. Its totient is φ = 91086792621120.

The previous prime is 100211211110011. The next prime is 100211211110033. The reversal of 100211211110021 is 120011112112001.

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-100211211110021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100211211109978 and 100211211110005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100211211110011) 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, 715346180 + ... + 715486253.

It is an arithmetic number, because the mean of its divisors is an integer number (13667311409568).

Almost surely, 2^{100211211110021} is an apocalyptic number.

100211211110021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100211211110021 is a deficient number, since it is larger than the sum of its proper divisors (9127280166523).

100211211110021 is a wasteful number, since it uses less digits than its factorization.

100211211110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430838811.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 100211211110021 its reverse (120011112112001), we get a palindrome (220222323222022).

The spelling of 100211211110021 in words is "one hundred trillion, two hundred eleven billion, two hundred eleven million, one hundred ten thousand, twenty-one".