2012021011211 has 16 divisors (see below), whose sum is σ = 2038040725248. Its totient is φ = 1986124368000.

The previous prime is 2012021011181. The next prime is 2012021011219. The reversal of 2012021011211 is 1121101202102.

It is a cyclic number.

It is not a de Polignac number, because 2012021011211 - 2²⁶ = 2011953902347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012021011219) 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, 155470001 + ... + 155482941.

It is an arithmetic number, because the mean of its divisors is an integer number (127377545328).

Almost surely, 2^{2012021011211} is an apocalyptic number.

2012021011211 is a deficient number, since it is larger than the sum of its proper divisors (26019714037).

2012021011211 is a wasteful number, since it uses less digits than its factorization.

2012021011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17542.

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

Adding to 2012021011211 its reverse (1121101202102), we get a palindrome (3133122213313).

The spelling of 2012021011211 in words is "two trillion, twelve billion, twenty-one million, eleven thousand, two hundred eleven".