1021022001212 has 24 divisors (see below), whose sum is σ = 1792748958000. Its totient is φ = 508809127680.

The previous prime is 1021022001163. The next prime is 1021022001221. The reversal of 1021022001212 is 2121002201201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3567887 + ... + 3843417.

It is an arithmetic number, because the mean of its divisors is an integer number (74697873250).

Almost surely, 2^{1021022001212} is an apocalyptic number.

It is an amenable number.

1021022001212 is a deficient number, since it is larger than the sum of its proper divisors (771726956788).

1021022001212 is a wasteful number, since it uses less digits than its factorization.

1021022001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278621 (or 278619 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1021022001212 its reverse (2121002201201), we get a palindrome (3142024202413).

The spelling of 1021022001212 in words is "one trillion, twenty-one billion, twenty-two million, one thousand, two hundred twelve".