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22022222021031 = 383619517127631
BaseRepresentation
bin1010000000111011100101…
…01110001000000110100111
32212222022012111221222200210
411000131302232020012213
510341303002314133111
6114500511422110503
74432024122420201
oct500356256100647
985868174858623
1022022222021031
117020632238161
12257807971b433
13c398c069467b
14561c4a163771
15282cadbeb0a6
hex140772b881a7

22022222021031 has 32 divisors (see below), whose sum is σ = 29771574497280. Its totient is φ = 14477839279200.

The previous prime is 22022222020999. The next prime is 22022222021071. The reversal of 22022222021031 is 13012022222022.

It is not a de Polignac number, because 22022222021031 - 25 = 22022222020999 is a prime.

It is a super-2 number, since 2×220222220210312 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22022222020989 and 22022222021007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022222021071) 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, 796997586 + ... + 797025216.

It is an arithmetic number, because the mean of its divisors is an integer number (930361703040).

Almost surely, 222022222021031 is an apocalyptic number.

22022222021031 is a deficient number, since it is larger than the sum of its proper divisors (7749352476249).

22022222021031 is a wasteful number, since it uses less digits than its factorization.

22022222021031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33507.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22022222021031 its reverse (13012022222022), we get a palindrome (35034244243053).

The spelling of 22022222021031 in words is "twenty-two trillion, twenty-two billion, two hundred twenty-two million, twenty-one thousand, thirty-one".

Divisors: 1 3 83 249 619 1857 5171 15513 27631 51377 82893 154131 429193 1287579 2293373 3200849 6880119 9602547 17103589 51310767 142879901 265670467 428639703 797011401 1419597887 4258793661 11859031783 35577095349 88442658719 265327976157 7340740673677 22022222021031