1012000001211 has 12 divisors (see below), whose sum is σ = 1461946125640. Its totient is φ = 674588969280.

The previous prime is 1012000001203. The next prime is 1012000001231. The reversal of 1012000001211 is 1121000002101.

It is a happy number.

It is not a de Polignac number, because 1012000001211 - 2³ = 1012000001203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012000001193 and 1012000001202.

It is not an unprimeable number, because it can be changed into a prime (1012000001231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6392305 + ... + 6548706.

Almost surely, 2^{1012000001211} is an apocalyptic number.

1012000001211 is a deficient number, since it is larger than the sum of its proper divisors (449946124429).

1012000001211 is a wasteful number, since it uses less digits than its factorization.

1012000001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12949706 (or 12949703 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1012000001211 its reverse (1121000002101), we get a palindrome (2133000003312).

The spelling of 1012000001211 in words is "one trillion, twelve billion, one thousand, two hundred eleven".