20102110212222 has 24 divisors (see below), whose sum is σ = 44731722725976. Its totient is φ = 6519603311856.

The previous prime is 20102110212211. The next prime is 20102110212227. The reversal of 20102110212222 is 22221201120102.

It is a happy number.

20102110212222 is a `hidden beast` number, since 20 + 1 + 0 + 211 + 0 + 212 + 222 = 666.

It is a super-3 number, since 3×20102110212222³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20102110212195 and 20102110212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102110212227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15091673668 + ... + 15091674999.

It is an arithmetic number, because the mean of its divisors is an integer number (1863821780249).

Almost surely, 2^{20102110212222} is an apocalyptic number.

20102110212222 is an abundant number, since it is smaller than the sum of its proper divisors (24629612513754).

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

20102110212222 is a wasteful number, since it uses less digits than its factorization.

20102110212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30183348712 (or 30183348709 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20102110212222 its reverse (22221201120102), we get a palindrome (42323311332324).

The spelling of 20102110212222 in words is "twenty trillion, one hundred two billion, one hundred ten million, two hundred twelve thousand, two hundred twenty-two".