102012221222 has 16 divisors (see below), whose sum is σ = 155316523632. Its totient is φ = 50240187360.

The previous prime is 102012221197. The next prime is 102012221231. The reversal of 102012221222 is 222122210201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102012221222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1764608 + ... + 1821500.

It is an arithmetic number, because the mean of its divisors is an integer number (9707282727).

Almost surely, 2^102012221222 is an apocalyptic number.

102012221222 is a deficient number, since it is larger than the sum of its proper divisors (53304302410).

102012221222 is a wasteful number, since it uses less digits than its factorization.

102012221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70343.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102012221222 its reverse (222122210201), we get a palindrome (324134431423).

It can be divided in two parts, 10201 and 2221222, that multiplied together give a palindrome (22658685622).

The spelling of 102012221222 in words is "one hundred two billion, twelve million, two hundred twenty-one thousand, two hundred twenty-two".