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1213031222022 = 2317231331338839
BaseRepresentation
bin10001101001101110010…
…010111000101100000110
311021222001020020210000010
4101221232102320230012
5124333241443101042
62325131524531050
7153432021155664
oct21515622705406
94258036223003
101213031222022
11428497557074
12177115850a86
138a50829b979
14429d509dc34
1521848c5859c
hex11a6e4b8b06

1213031222022 has 64 divisors (see below), whose sum is σ = 2680728099840. Its totient is φ = 363976065024.

The previous prime is 1213031221973. The next prime is 1213031222059. The reversal of 1213031222022 is 2202221303121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213031222022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31212879 + ... + 31251717.

It is an arithmetic number, because the mean of its divisors is an integer number (41886376560).

Almost surely, 21213031222022 is an apocalyptic number.

1213031222022 is an abundant number, since it is smaller than the sum of its proper divisors (1467696877818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213031222022 is a wasteful number, since it uses less digits than its factorization.

1213031222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52197.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1213031222022 its reverse (2202221303121), we get a palindrome (3415252525143).

The spelling of 1213031222022 in words is "one trillion, two hundred thirteen billion, thirty-one million, two hundred twenty-two thousand, twenty-two".

Divisors: 1 2 3 6 17 23 34 46 51 69 102 138 391 782 1173 2346 13313 26626 38839 39939 77678 79878 116517 226321 233034 306199 452642 612398 660263 678963 893297 918597 1320526 1357926 1786594 1837194 1980789 2679891 3961578 5205383 5359782 10410766 15186049 15616149 30372098 31232298 45558147 91116294 517063607 1034127214 1551190821 3102381642 8790081319 11892462961 17580162638 23784925922 26370243957 35677388883 52740487914 71354777766 202171870337 404343740674 606515611011 1213031222022