102222021222 has 48 divisors (see below), whose sum is σ = 230714265600. Its totient is φ = 33921172872.

The previous prime is 102222021221. The next prime is 102222021257. The reversal of 102222021222 is 222120222201.

It is a super-3 number, since 3×102222021222³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 = 102222021195 and 102222021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222021221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 363222 + ... + 579977.

It is an arithmetic number, because the mean of its divisors is an integer number (4806547200).

Almost surely, 2^102222021222 is an apocalyptic number.

102222021222 is an abundant number, since it is smaller than the sum of its proper divisors (128492244378).

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

102222021222 is an equidigital number, since it uses as much as digits as its factorization.

102222021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943439 (or 943427 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 102222021222 its reverse (222120222201), we get a palindrome (324342243423).

The spelling of 102222021222 in words is "one hundred two billion, two hundred twenty-two million, twenty-one thousand, two hundred twenty-two".