1201021201211 has 32 divisors (see below), whose sum is σ = 1387577856000. Its totient is φ = 1030248305280.

The previous prime is 1201021201157. The next prime is 1201021201217. The reversal of 1201021201211 is 1121021201021.

It is not a de Polignac number, because 1201021201211 - 2¹⁴ = 1201021184827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201021201217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5420990 + ... + 5638188.

It is an arithmetic number, because the mean of its divisors is an integer number (43361808000).

Almost surely, 2^{1201021201211} is an apocalyptic number.

1201021201211 is a deficient number, since it is larger than the sum of its proper divisors (186556654789).

1201021201211 is a wasteful number, since it uses less digits than its factorization.

1201021201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217659.

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

Adding to 1201021201211 its reverse (1121021201021), we get a palindrome (2322042402232).

The spelling of 1201021201211 in words is "one trillion, two hundred one billion, twenty-one million, two hundred one thousand, two hundred eleven".