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2121000211122 = 2313211922713967
BaseRepresentation
bin11110110111010101011…
…101101101001010110010
321111202200011002110011220
4132313111131231022302
5234222302023223442
64302212443245510
7306144235220622
oct36672535551262
97452604073156
102121000211122
11748569363371
122a3092819896
13125017a30a30
147492a99a882
153a28aba6eec
hex1edd576d2b2

2121000211122 has 64 divisors (see below), whose sum is σ = 4590785009664. Its totient is φ = 649405592640.

The previous prime is 2121000211093. The next prime is 2121000211129. The reversal of 2121000211122 is 2211120001212.

It is not an unprimeable number, because it can be changed into a prime (2121000211129) 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, 151850983 + ... + 151864949.

It is an arithmetic number, because the mean of its divisors is an integer number (71731015776).

Almost surely, 22121000211122 is an apocalyptic number.

2121000211122 is an abundant number, since it is smaller than the sum of its proper divisors (2469784798542).

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

2121000211122 is a wasteful number, since it uses less digits than its factorization.

2121000211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23423.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2121000211122 its reverse (2211120001212), we get a palindrome (4332120212334).

The spelling of 2121000211122 in words is "two trillion, one hundred twenty-one billion, two hundred eleven thousand, one hundred twenty-two".

Divisors: 1 2 3 6 13 26 39 78 211 422 633 1266 2743 5486 8229 9227 13967 16458 18454 27681 27934 41901 55362 83802 119951 181571 239902 359853 363142 544713 719706 1089426 1946897 2947037 3893794 5840691 5894074 8841111 11681382 17682222 25309661 38311481 50619322 75928983 76622962 114934443 128873509 151857966 229868886 257747018 386620527 773241054 1675355617 3350711234 5026066851 10052133702 27192310399 54384620798 81576931197 163153862394 353500035187 707000070374 1060500105561 2121000211122