1012212001205 has 16 divisors (see below), whose sum is σ = 1216918911360. Its totient is φ = 808261094592.

The previous prime is 1012212001193. The next prime is 1012212001223. The reversal of 1012212001205 is 5021002122101.

It is a cyclic number.

It is not a de Polignac number, because 1012212001205 - 2³² = 1007917033909 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6994976 + ... + 7138214.

It is an arithmetic number, because the mean of its divisors is an integer number (76057431960).

Almost surely, 2^{1012212001205} is an apocalyptic number.

It is an amenable number.

1012212001205 is a deficient number, since it is larger than the sum of its proper divisors (204706910155).

1012212001205 is a wasteful number, since it uses less digits than its factorization.

1012212001205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145868.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 1012212001205 its reverse (5021002122101), we get a palindrome (6033214123306).

The spelling of 1012212001205 in words is "one trillion, twelve billion, two hundred twelve million, one thousand, two hundred five".