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12020020212021 = 311981334418947
BaseRepresentation
bin1010111011101010000100…
…0010001111000100110101
31120120002202212122020201120
42232322201002033010311
53033414000133241041
641321530540414153
72350263210010413
oct256724102170465
946502685566646
1012020020212021
113914731059478
121421688547359
136926383232a3
142d7ab48462b3
1515ca05830366
hexaeea108f135

12020020212021 has 8 divisors (see below), whose sum is σ = 16028031339744. Its totient is φ = 8012677946160.

The previous prime is 12020020211999. The next prime is 12020020212073. The reversal of 12020020212021 is 12021202002021.

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

It is not a de Polignac number, because 12020020212021 - 26 = 12020020211957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020020232021) 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, 167173531 + ... + 167245416.

It is an arithmetic number, because the mean of its divisors is an integer number (2003503917468).

Almost surely, 212020020212021 is an apocalyptic number.

It is an amenable number.

12020020212021 is a deficient number, since it is larger than the sum of its proper divisors (4008011127723).

12020020212021 is a wasteful number, since it uses less digits than its factorization.

12020020212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334430931.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12020020212021 its reverse (12021202002021), we get a palindrome (24041222214042).

The spelling of 12020020212021 in words is "twelve trillion, twenty billion, twenty million, two hundred twelve thousand, twenty-one".