1210122121112 has 8 divisors (see below), whose sum is σ = 2268978977100. Its totient is φ = 605061060552.

The previous prime is 1210122121097. The next prime is 1210122121123. The reversal of 1210122121112 is 2111212210121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1210122121112² (a number of 25 digits) contains 22 as substring.

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, 75632632562 + ... + 75632632577.

Almost surely, 2^{1210122121112} is an apocalyptic number.

It is an amenable number.

1210122121112 is a deficient number, since it is larger than the sum of its proper divisors (1058856855988).

1210122121112 is a wasteful number, since it uses less digits than its factorization.

1210122121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151265265145 (or 151265265141 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1210122121112 its reverse (2111212210121), we get a palindrome (3321334331233).

The spelling of 1210122121112 in words is "one trillion, two hundred ten billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred twelve".