1212111200222 has 16 divisors (see below), whose sum is σ = 1958110831152. Its totient is φ = 559411639680.

The previous prime is 1212111200191. The next prime is 1212111200239. The reversal of 1212111200222 is 2220021112121.

It is a super-3 number, since 3×1212111200222³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1212111200222.

It is a congruent number.

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, 395243 + ... + 1606374.

It is an arithmetic number, because the mean of its divisors is an integer number (122381926947).

Almost surely, 2^{1212111200222} is an apocalyptic number.

1212111200222 is a deficient number, since it is larger than the sum of its proper divisors (745999630930).

1212111200222 is a wasteful number, since it uses less digits than its factorization.

1212111200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024923.

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

Adding to 1212111200222 its reverse (2220021112121), we get a palindrome (3432132312343).

The spelling of 1212111200222 in words is "one trillion, two hundred twelve billion, one hundred eleven million, two hundred thousand, two hundred twenty-two".