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20222022111221 = 7401153117232731
BaseRepresentation
bin1001001100100010011100…
…11100011100111111110101
32122121012120111020100112002
410212101032130130333311
510122304200130024341
6111001511350305045
74154664362565530
oct446211634347765
978535514210462
1020222022111221
116497125327357
1223271b6358185
13b38c0bbc7248
144dca72dd7a17
1525104b85529b
hex12644e71cff5

20222022111221 has 32 divisors (see below), whose sum is σ = 23205597858816. Its totient is φ = 17262292320000.

The previous prime is 20222022111209. The next prime is 20222022111223. The reversal of 20222022111221 is 12211122022202.

It is not a de Polignac number, because 20222022111221 - 218 = 20222021849077 is a prime.

It is a super-2 number, since 2×202220221112212 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20222022111193 and 20222022111202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222022111223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7404620426 + ... + 7404623156.

It is an arithmetic number, because the mean of its divisors is an integer number (725174933088).

Almost surely, 220222022111221 is an apocalyptic number.

It is an amenable number.

20222022111221 is a deficient number, since it is larger than the sum of its proper divisors (2983575747595).

20222022111221 is a wasteful number, since it uses less digits than its factorization.

20222022111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6393.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20222022111221 its reverse (12211122022202), we get a palindrome (32433144133423).

The spelling of 20222022111221 in words is "twenty trillion, two hundred twenty-two billion, twenty-two million, one hundred eleven thousand, two hundred twenty-one".

Divisors: 1 7 401 1531 1723 2731 2807 10717 12061 19117 613931 690923 1095131 2637913 4181161 4297517 4705513 4836461 7665917 18465391 29268127 32938591 1057803113 1676645561 1886910713 7204140403 7404621791 11736518927 13208374991 50428982821 2888860301603 20222022111221