1021132121012 has 12 divisors (see below), whose sum is σ = 1789184646816. Its totient is φ = 509936507640.

The previous prime is 1021132121003. The next prime is 1021132121041. The reversal of 1021132121012 is 2101212311201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157384568 + ... + 157391055.

It is an arithmetic number, because the mean of its divisors is an integer number (149098720568).

Almost surely, 2^{1021132121012} is an apocalyptic number.

It is an amenable number.

1021132121012 is a deficient number, since it is larger than the sum of its proper divisors (768052525804).

1021132121012 is a wasteful number, since it uses less digits than its factorization.

1021132121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314776438 (or 314776436 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1021132121012 its reverse (2101212311201), we get a palindrome (3122344432213).

The spelling of 1021132121012 in words is "one trillion, twenty-one billion, one hundred thirty-two million, one hundred twenty-one thousand, twelve".