100020110212221 has 64 divisors (see below), whose sum is σ = 142646769377280. Its totient is φ = 62153851193280.

The previous prime is 100020110212193. The next prime is 100020110212249. The reversal of 100020110212221 is 122212011020001.

It is an interprime number because it is at equal distance from previous prime (100020110212193) and next prime (100020110212249).

It is not a de Polignac number, because 100020110212221 - 2⁹ = 100020110211709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100020110212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100020110212291) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10079619166 + ... + 10079629088.

It is an arithmetic number, because the mean of its divisors is an integer number (2228855771520).

Almost surely, 2^{100020110212221} is an apocalyptic number.

It is an amenable number.

100020110212221 is a deficient number, since it is larger than the sum of its proper divisors (42626659165059).

100020110212221 is a wasteful number, since it uses less digits than its factorization.

100020110212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14846.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 100020110212221 its reverse (122212011020001), we get a palindrome (222232121232222).

The spelling of 100020110212221 in words is "one hundred trillion, twenty billion, one hundred ten million, two hundred twelve thousand, two hundred twenty-one".