1000212012105 has 16 divisors (see below), whose sum is σ = 1600351615104. Its totient is φ = 533442274560.

The previous prime is 1000212012103. The next prime is 1000212012131. The reversal of 1000212012105 is 5012102120001.

It is not a de Polignac number, because 1000212012105 - 2¹ = 1000212012103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1000212012103) 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, 3697620 + ... + 3958890.

It is an arithmetic number, because the mean of its divisors is an integer number (100021975944).

Almost surely, 2^{1000212012105} is an apocalyptic number.

1000212012105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1000212012105 is a deficient number, since it is larger than the sum of its proper divisors (600139602999).

1000212012105 is a wasteful number, since it uses less digits than its factorization.

1000212012105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516496.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 1000212012105 its reverse (5012102120001), we get a palindrome (6012314132106).

The spelling of 1000212012105 in words is "one trillion, two hundred twelve million, twelve thousand, one hundred five".