102002121222 has 16 divisors (see below), whose sum is σ = 208748527680. Its totient is φ = 33209992872.

The previous prime is 102002121187. The next prime is 102002121227. The reversal of 102002121222 is 222121200201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102002121227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197678272 + ... + 197678787.

It is an arithmetic number, because the mean of its divisors is an integer number (13046782980).

Almost surely, 2^102002121222 is an apocalyptic number.

102002121222 is an abundant number, since it is smaller than the sum of its proper divisors (106746406458).

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

102002121222 is a wasteful number, since it uses less digits than its factorization.

102002121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395357107.

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

Adding to 102002121222 its reverse (222121200201), we get a palindrome (324123321423).

The spelling of 102002121222 in words is "one hundred two billion, two million, one hundred twenty-one thousand, two hundred twenty-two".