12020001021211 has 8 divisors (see below), whose sum is σ = 12083778502400. Its totient is φ = 11956388982120.

The previous prime is 12020001021107. The next prime is 12020001021221. The reversal of 12020001021211 is 11212010002021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12020001021211 - 2³⁵ = 11985641282843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020001021191 and 12020001021200.

It is not an unprimeable number, because it can be changed into a prime (12020001021221) 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, 41214831 + ... + 41505448.

It is an arithmetic number, because the mean of its divisors is an integer number (1510472312800).

Almost surely, 2^{12020001021211} is an apocalyptic number.

12020001021211 is a deficient number, since it is larger than the sum of its proper divisors (63777481189).

12020001021211 is an equidigital number, since it uses as much as digits as its factorization.

12020001021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82721049.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12020001021211 its reverse (11212010002021), we get a palindrome (23232011023232).

The spelling of 12020001021211 in words is "twelve trillion, twenty billion, one million, twenty-one thousand, two hundred eleven".