221010001121112 has 32 divisors (see below), whose sum is σ = 631457146060800. Its totient is φ = 63145714605984.

The previous prime is 221010001121111. The next prime is 221010001121113. The reversal of 221010001121112 is 211121100010122.

It is a happy number.

221010001121112 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (221010001121111) and next prime (221010001121113).

It is a junction number, because it is equal to n+sod(n) for n = 221010001121091 and 221010001121100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221010001121111) 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, 657767860312 + ... + 657767860647.

It is an arithmetic number, because the mean of its divisors is an integer number (19733035814400).

Almost surely, 2^{221010001121112} is an apocalyptic number.

It is an amenable number.

221010001121112 is an abundant number, since it is smaller than the sum of its proper divisors (410447144939688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221010001121112 is a wasteful number, since it uses less digits than its factorization.

221010001121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315535720975 (or 1315535720971 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 221010001121112 its reverse (211121100010122), we get a palindrome (432131101131234).

The spelling of 221010001121112 in words is "two hundred twenty-one trillion, ten billion, one million, one hundred twenty-one thousand, one hundred twelve".