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121201220200211 = 641360135250367
BaseRepresentation
bin11011100011101101011011…
…101011010010011100010011
3120220010201112102111201221022
4123203231123223102130103
5111341230044332401321
61105435023310350055
734346333136340214
oct3343553353223423
9526121472451838
10121201220200211
1135689170103828
12117157374bb32b
1352822c275c428
1421d025566540b
15e02ac651bdab
hex6e3b5bad2713

121201220200211 has 8 divisors (see below), whose sum is σ = 121393695523584. Its totient is φ = 121008755450880.

The previous prime is 121201220200201. The next prime is 121201220200219. The reversal of 121201220200211 is 112002022102121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-121201220200211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121201220200211.

It is not an unprimeable number, because it can be changed into a prime (121201220200219) 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, 20459150 + ... + 25709516.

It is an arithmetic number, because the mean of its divisors is an integer number (15174211940448).

Almost surely, 2121201220200211 is an apocalyptic number.

121201220200211 is a deficient number, since it is larger than the sum of its proper divisors (192475323373).

121201220200211 is an equidigital number, since it uses as much as digits as its factorization.

121201220200211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287021.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121201220200211 its reverse (112002022102121), we get a palindrome (233203242302332).

The spelling of 121201220200211 in words is "one hundred twenty-one trillion, two hundred one billion, two hundred twenty million, two hundred thousand, two hundred eleven".

Divisors: 1 641 36013 5250367 23084333 3365485247 189081466771 121201220200211