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20122102201211 = 137324974519699
BaseRepresentation
bin1001001001101000010101…
…10000001111101101111011
32122020122122220022000002022
410210310022300033231323
510114140031130414321
6110443544404025055
74144526310426533
oct444641260175573
978218586260068
1020122102201211
11645881012402a
12230b96b39218b
13b2c676b79b3a
144d7cb48644c3
1524d64e68adab
hex124d0ac0fb7b

20122102201211 has 8 divisors (see below), whose sum is σ = 20269607062800. Its totient is φ = 19974606444288.

The previous prime is 20122102201189. The next prime is 20122102201219. The reversal of 20122102201211 is 11210220122102.

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-20122102201211 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 20122102201211.

It is not an unprimeable number, because it can be changed into a prime (20122102201219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2192240 + ... + 6711938.

It is an arithmetic number, because the mean of its divisors is an integer number (2533700882850).

Almost surely, 220122102201211 is an apocalyptic number.

20122102201211 is a deficient number, since it is larger than the sum of its proper divisors (147504861589).

20122102201211 is a wasteful number, since it uses less digits than its factorization.

20122102201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4552333.

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

Adding to 20122102201211 its reverse (11210220122102), we get a palindrome (31332322323313).

The spelling of 20122102201211 in words is "twenty trillion, one hundred twenty-two billion, one hundred two million, two hundred one thousand, two hundred eleven".

Divisors: 1 137 32497 4452089 4519699 619198763 146876658403 20122102201211