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2121002213030 = 251837911540357
BaseRepresentation
bin11110110111010101100…
…101010101111010100110
321111202200021212011021122
4132313111211111322212
5234222303031304110
64302212554213542
7306144261226241
oct36672545257246
97452607764248
102121002213030
1174856a500438
122a30934242b2
13125018281cac
147492ad5c258
153a28ae50255
hex1edd5955ea6

2121002213030 has 16 divisors (see below), whose sum is σ = 3818012040720. Its totient is φ = 848354650272.

The previous prime is 2121002213021. The next prime is 2121002213039. The reversal of 2121002213030 is 303122001212.

It is an interprime number because it is at equal distance from previous prime (2121002213021) and next prime (2121002213039).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121002213039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5586389 + ... + 5953968.

It is an arithmetic number, because the mean of its divisors is an integer number (238625752545).

Almost surely, 22121002213030 is an apocalyptic number.

2121002213030 is a deficient number, since it is larger than the sum of its proper divisors (1697009827690).

2121002213030 is a wasteful number, since it uses less digits than its factorization.

2121002213030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11558743.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2121002213030 its reverse (303122001212), we get a palindrome (2424124214242).

The spelling of 2121002213030 in words is "two trillion, one hundred twenty-one billion, two million, two hundred thirteen thousand, thirty".

Divisors: 1 2 5 10 18379 36758 91895 183790 11540357 23080714 57701785 115403570 212100221303 424200442606 1060501106515 2121002213030