1210221210122 has 32 divisors (see below), whose sum is σ = 1828306391040. Its totient is φ = 600804495360.

The previous prime is 1210221210101. The next prime is 1210221210139. The reversal of 1210221210122 is 2210121220121.

It is a self number, because there is not a number n which added to its sum of digits gives 1210221210122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221203847 + ... + 221209317.

It is an arithmetic number, because the mean of its divisors is an integer number (57134574720).

Almost surely, 2^{1210221210122} is an apocalyptic number.

1210221210122 is a deficient number, since it is larger than the sum of its proper divisors (618085180918).

1210221210122 is a wasteful number, since it uses less digits than its factorization.

1210221210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7046.

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

Adding to 1210221210122 its reverse (2210121220121), we get a palindrome (3420342430243).

Subtracting 1210221210122 from its reverse (2210121220121), we obtain a palindrome (999900009999).

The spelling of 1210221210122 in words is "one trillion, two hundred ten billion, two hundred twenty-one million, two hundred ten thousand, one hundred twenty-two".