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121022020202201 = 823175383884679
BaseRepresentation
bin11011100001000110100010…
…100001100010111011011001
3120212111120222200002122002222
4123201012202201202323121
5111330311044132432301
61105220425404433425
734330360323442346
oct3341064241427331
9525446880078088
10121022020202201
113561a172403a18
12116a6a65848875
13526b43479b951
1421c56d5bd57cd
15ded0d918b31b
hex6e11a2862ed9

121022020202201 has 8 divisors (see below), whose sum is σ = 121238192465280. Its totient is φ = 120806015713632.

The previous prime is 121022020202123. The next prime is 121022020202221. The reversal of 121022020202201 is 102202020220121.

It is a happy number.

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 121022020202201 - 238 = 120747142295257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121022020202201.

It is not an unprimeable number, because it can be changed into a prime (121022020202221) 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, 40499621 + ... + 43385058.

It is an arithmetic number, because the mean of its divisors is an integer number (15154774058160).

Almost surely, 2121022020202201 is an apocalyptic number.

It is an amenable number.

121022020202201 is a deficient number, since it is larger than the sum of its proper divisors (216172263079).

121022020202201 is an equidigital number, since it uses as much as digits as its factorization.

121022020202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83887255.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121022020202201 its reverse (102202020220121), we get a palindrome (223224040422322).

The spelling of 121022020202201 in words is "one hundred twenty-one trillion, twenty-two billion, twenty million, two hundred two thousand, two hundred one".

Divisors: 1 823 1753 1442719 83884679 69037090817 147049842287 121022020202201