1021112001212 has 48 divisors (see below), whose sum is σ = 1928756551680. Its totient is φ = 471274540800.

The previous prime is 1021112001211. The next prime is 1021112001319. The reversal of 1021112001212 is 2121002111201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021112001211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368489 + ... + 1475807.

It is an arithmetic number, because the mean of its divisors is an integer number (40182428160).

Almost surely, 2^{1021112001212} is an apocalyptic number.

It is an amenable number.

1021112001212 is a deficient number, since it is larger than the sum of its proper divisors (907644550468).

1021112001212 is a wasteful number, since it uses less digits than its factorization.

1021112001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107602 (or 1107600 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1021112001212 its reverse (2121002111201), we get a palindrome (3142114112413).

The spelling of 1021112001212 in words is "one trillion, twenty-one billion, one hundred twelve million, one thousand, two hundred twelve".