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11222221012201 = 671871607314741
BaseRepresentation
bin1010001101001110000001…
…1111110011110011101001
31110201211111212200202000201
42203103200133303303221
52432331102034342301
635511230035032201
72235531045466423
oct243234037636351
943654455622021
1011222221012201
113637354220501
121312b3713b661
136353352c8554
142ab2308c9813
15146db0867201
hexa34e07f3ce9

11222221012201 has 16 divisors (see below), whose sum is σ = 11398454016768. Its totient is φ = 11046247977600.

The previous prime is 11222221012193. The next prime is 11222221012217. The reversal of 11222221012201 is 10221012222211.

It is not a de Polignac number, because 11222221012201 - 23 = 11222221012193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11222221012241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 761285691 + ... + 761300431.

It is an arithmetic number, because the mean of its divisors is an integer number (712403376048).

Almost surely, 211222221012201 is an apocalyptic number.

It is an amenable number.

11222221012201 is a deficient number, since it is larger than the sum of its proper divisors (176233004567).

11222221012201 is a wasteful number, since it uses less digits than its factorization.

11222221012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22752.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11222221012201 its reverse (10221012222211), we get a palindrome (21443233234412).

The spelling of 11222221012201 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty-one million, twelve thousand, two hundred one".

Divisors: 1 67 1871 6073 14741 125357 406891 987647 11362583 27580411 89522093 761293061 1847887537 5997980231 167495836003 11222221012201