221010121001112 has 16 divisors (see below), whose sum is σ = 552525302502840. Its totient is φ = 73670040333696.

The previous prime is 221010121001107. The next prime is 221010121001143. The reversal of 221010121001112 is 211100121010122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221010121001091 and 221010121001100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4604377520833 + ... + 4604377520880.

Almost surely, 2^{221010121001112} is an apocalyptic number.

It is an amenable number.

221010121001112 is an abundant number, since it is smaller than the sum of its proper divisors (331515181501728).

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

221010121001112 is a wasteful number, since it uses less digits than its factorization.

221010121001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9208755041722 (or 9208755041718 counting only the distinct ones).

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

Adding to 221010121001112 its reverse (211100121010122), we get a palindrome (432110242011234).

The spelling of 221010121001112 in words is "two hundred twenty-one trillion, ten billion, one hundred twenty-one million, one thousand, one hundred twelve".