1211000020006 has 16 divisors (see below), whose sum is σ = 2080816750080. Its totient is φ = 517795829640.

The previous prime is 1211000019997. The next prime is 1211000020007. The reversal of 1211000020006 is 6000200001121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211000020007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100341996 + ... + 100354063.

It is an arithmetic number, because the mean of its divisors is an integer number (130051046880).

Almost surely, 2^{1211000020006} is an apocalyptic number.

1211000020006 is a deficient number, since it is larger than the sum of its proper divisors (869816730074).

1211000020006 is a wasteful number, since it uses less digits than its factorization.

1211000020006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200696499.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1211000020006 its reverse (6000200001121), we get a palindrome (7211200021127).

The spelling of 1211000020006 in words is "one trillion, two hundred eleven billion, twenty thousand, six".