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20202210122201 = 31164958874991
BaseRepresentation
bin1001001011111101100011…
…00011101101100111011001
32122112022102202111000211222
410211332301203231213121
510121443111242402301
6110544433414501425
74153363412503562
oct445766143554731
978468382430758
1020202210122201
116489788a41808
1223233a7364875
13b370a2469913
144dbb13a93169
1525078c37631b
hex125fb18ed9d9

20202210122201 has 4 divisors (see below), whose sum is σ = 20267168997504. Its totient is φ = 20137251246900.

The previous prime is 20202210122197. The next prime is 20202210122207. The reversal of 20202210122201 is 10222101220202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20202210122201 - 22 = 20202210122197 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 20202210122201.

It is not an unprimeable number, because it can be changed into a prime (20202210122207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32479437185 + ... + 32479437806.

It is an arithmetic number, because the mean of its divisors is an integer number (5066792249376).

Almost surely, 220202210122201 is an apocalyptic number.

It is an amenable number.

20202210122201 is a deficient number, since it is larger than the sum of its proper divisors (64958875303).

20202210122201 is an equidigital number, since it uses as much as digits as its factorization.

20202210122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64958875302.

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

Adding to 20202210122201 its reverse (10222101220202), we get a palindrome (30424311342403).

The spelling of 20202210122201 in words is "twenty trillion, two hundred two billion, two hundred ten million, one hundred twenty-two thousand, two hundred one".

Divisors: 1 311 64958874991 20202210122201