1212102211222 has 8 divisors (see below), whose sum is σ = 2077889504976. Its totient is φ = 519472376232.

The previous prime is 1212102211213. The next prime is 1212102211223. The reversal of 1212102211222 is 2221122012121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1212102211222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212102211223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43289364673 + ... + 43289364700.

It is an arithmetic number, because the mean of its divisors is an integer number (259736188122).

Almost surely, 2^{1212102211222} is an apocalyptic number.

1212102211222 is a deficient number, since it is larger than the sum of its proper divisors (865787293754).

1212102211222 is an equidigital number, since it uses as much as digits as its factorization.

1212102211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86578729382.

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

Adding to 1212102211222 its reverse (2221122012121), we get a palindrome (3433224223343).

The spelling of 1212102211222 in words is "one trillion, two hundred twelve billion, one hundred two million, two hundred eleven thousand, two hundred twenty-two".