1212202211122 has 16 divisors (see below), whose sum is σ = 2078078616000. Its totient is φ = 519510812688.

The previous prime is 1212202211119. The next prime is 1212202211137. The reversal of 1212202211122 is 2211122022121.

It is a self number, because there is not a number n which added to its sum of digits gives 1212202211122.

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, 1759473 + ... + 2349499.

It is an arithmetic number, because the mean of its divisors is an integer number (129879913500).

Almost surely, 2^{1212202211122} is an apocalyptic number.

1212202211122 is a deficient number, since it is larger than the sum of its proper divisors (865876404878).

1212202211122 is a wasteful number, since it uses less digits than its factorization.

1212202211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736785.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1212202211122 its reverse (2211122022121), we get a palindrome (3423324233243).

The spelling of 1212202211122 in words is "one trillion, two hundred twelve billion, two hundred two million, two hundred eleven thousand, one hundred twenty-two".