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20022221200131 = 35454811811657
BaseRepresentation
bin1001000110101110010010…
…11000011101101100000011
32121220002212000120102200000
410203113021120131230003
510111021002111401011
6110330025331331043
74134362210062623
oct443271130355403
977802760512600
1020022221200131
11641a415986647
1222b4535450a83
13b23119c03777
144d311b53c883
1524ac55b0a356
hex1235c961db03

20022221200131 has 24 divisors (see below), whose sum is σ = 29992809812784. Its totient is φ = 13347846610560.

The previous prime is 20022221200049. The next prime is 20022221200147. The reversal of 20022221200131 is 13100212222002.

20022221200131 is a `hidden beast` number, since 200 + 222 + 212 + 0 + 0 + 1 + 31 = 666.

It is not a de Polignac number, because 20022221200131 - 221 = 20022219102979 is a prime.

It is a super-2 number, since 2×200222212001312 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20022221200151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10146055 + ... + 11957711.

It is an arithmetic number, because the mean of its divisors is an integer number (1249700408866).

Almost surely, 220022221200131 is an apocalyptic number.

20022221200131 is a deficient number, since it is larger than the sum of its proper divisors (9970588612653).

20022221200131 is an equidigital number, since it uses as much as digits as its factorization.

20022221200131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857153 (or 1857141 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20022221200131 its reverse (13100212222002), we get a palindrome (33122433422133).

The spelling of 20022221200131 in words is "twenty trillion, twenty-two billion, two hundred twenty-one million, two hundred thousand, one hundred thirty-one".

Divisors: 1 3 9 27 81 243 45481 136443 409329 1227987 1811657 3683961 5434971 11051883 16304913 48914739 146744217 440232651 82395972017 247187916051 741563748153 2224691244459 6674073733377 20022221200131