1022002121222 has 16 divisors (see below), whose sum is σ = 1585872771072. Its totient is φ = 493449069960.

The previous prime is 1022002121197. The next prime is 1022002121237. The reversal of 1022002121222 is 2221212002201.

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 1022002121222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17772488 + ... + 17829899.

It is an arithmetic number, because the mean of its divisors is an integer number (99117048192).

Almost surely, 2^{1022002121222} is an apocalyptic number.

1022002121222 is a deficient number, since it is larger than the sum of its proper divisors (563870649850).

1022002121222 is a wasteful number, since it uses less digits than its factorization.

1022002121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35602883.

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

Adding to 1022002121222 its reverse (2221212002201), we get a palindrome (3243214123423).

The spelling of 1022002121222 in words is "one trillion, twenty-two billion, two million, one hundred twenty-one thousand, two hundred twenty-two".