12101212120022 has 4 divisors (see below), whose sum is σ = 18151818180036. Its totient is φ = 6050606060010.

The previous prime is 12101212119989. The next prime is 12101212120061. The reversal of 12101212120022 is 22002121210121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3025303030004 + ... + 3025303030007.

It is an arithmetic number, because the mean of its divisors is an integer number (4537954545009).

Almost surely, 2^{12101212120022} is an apocalyptic number.

12101212120022 is a deficient number, since it is larger than the sum of its proper divisors (6050606060014).

12101212120022 is an equidigital number, since it uses as much as digits as its factorization.

12101212120022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050606060013.

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

Adding to 12101212120022 its reverse (22002121210121), we get a palindrome (34103333330143).

Subtracting 12101212120022 from its reverse (22002121210121), we obtain a palindrome (9900909090099).

The spelling of 12101212120022 in words is "twelve trillion, one hundred one billion, two hundred twelve million, one hundred twenty thousand, twenty-two".