1210121131146 has 8 divisors (see below), whose sum is σ = 2420242262304. Its totient is φ = 403373710380.

The previous prime is 1210121130971. The next prime is 1210121131147. The reversal of 1210121131146 is 6411311210121.

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

1210121131146 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1210121131147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100843427590 + ... + 100843427601.

It is an arithmetic number, because the mean of its divisors is an integer number (302530282788).

Almost surely, 2^{1210121131146} is an apocalyptic number.

1210121131146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1210121131146 is a wasteful number, since it uses less digits than its factorization.

1210121131146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201686855196.

The product of its (nonzero) digits is 288, while the sum is 24.

Adding to 1210121131146 its reverse (6411311210121), we get a palindrome (7621432341267).

The spelling of 1210121131146 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, one hundred thirty-one thousand, one hundred forty-six".