1201012211211 has 16 divisors (see below), whose sum is σ = 1619737324800. Its totient is φ = 791531889120.

The previous prime is 1201012211149. The next prime is 1201012211219. The reversal of 1201012211211 is 1121122101021.

It is a happy number.

It is not a de Polignac number, because 1201012211211 - 2¹⁰ = 1201012210187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201012211219) 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, 6272575 + ... + 6461208.

It is an arithmetic number, because the mean of its divisors is an integer number (101233582800).

Almost surely, 2^{1201012211211} is an apocalyptic number.

1201012211211 is a deficient number, since it is larger than the sum of its proper divisors (418725113589).

1201012211211 is a wasteful number, since it uses less digits than its factorization.

1201012211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12734146.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1201012211211 its reverse (1121122101021), we get a palindrome (2322134312232).

The spelling of 1201012211211 in words is "one trillion, two hundred one billion, twelve million, two hundred eleven thousand, two hundred eleven".