100211000021221 has 8 divisors (see below), whose sum is σ = 100262163183104. Its totient is φ = 100159849874880.

The previous prime is 100211000021219. The next prime is 100211000021299. The reversal of 100211000021221 is 122120000112001.

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 100211000021221 - 2¹ = 100211000021219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100211000021521) 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, 12167356 + ... + 18667258.

It is an arithmetic number, because the mean of its divisors is an integer number (12532770397888).

Almost surely, 2^{100211000021221} is an apocalyptic number.

It is an amenable number.

100211000021221 is a deficient number, since it is larger than the sum of its proper divisors (51163161883).

100211000021221 is an equidigital number, since it uses as much as digits as its factorization.

100211000021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6507771.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100211000021221 its reverse (122120000112001), we get a palindrome (222331000133222).

The spelling of 100211000021221 in words is "one hundred trillion, two hundred eleven billion, twenty-one thousand, two hundred twenty-one".