1210021211222 has 16 divisors (see below), whose sum is σ = 1827663508944. Its totient is φ = 600809580000.

The previous prime is 1210021211183. The next prime is 1210021211227. The reversal of 1210021211222 is 2221121200121.

It is a self number, because there is not a number n which added to its sum of digits gives 1210021211222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210021211227) 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, 2130404 + ... + 2637927.

It is an arithmetic number, because the mean of its divisors is an integer number (114228969309).

Almost surely, 2^{1210021211222} is an apocalyptic number.

1210021211222 is a deficient number, since it is larger than the sum of its proper divisors (617642297722).

1210021211222 is a wasteful number, since it uses less digits than its factorization.

1210021211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4769215.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1210021211222 its reverse (2221121200121), we get a palindrome (3431142411343).

The spelling of 1210021211222 in words is "one trillion, two hundred ten billion, twenty-one million, two hundred eleven thousand, two hundred twenty-two".