102222210012 has 72 divisors (see below), whose sum is σ = 258374113200. Its totient is φ = 31441213440.

The previous prime is 102222210007. The next prime is 102222210053. The reversal of 102222210012 is 210012222201.

It is a junction number, because it is equal to n+sod(n) for n = 102222209973 and 102222210000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6524364 + ... + 6540012.

It is an arithmetic number, because the mean of its divisors is an integer number (3588529350).

Almost surely, 2^102222210012 is an apocalyptic number.

102222210012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102222210012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129187056600).

102222210012 is an abundant number, since it is smaller than the sum of its proper divisors (156151903188).

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

102222210012 is a wasteful number, since it uses less digits than its factorization.

102222210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18903 (or 18888 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102222210012 its reverse (210012222201), we get a palindrome (312234432213).

The spelling of 102222210012 in words is "one hundred two billion, two hundred twenty-two million, two hundred ten thousand, twelve".