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2122101010 = 25976413413
BaseRepresentation
bin111111001111100…
…1011000100010010
312110220002220022201
41332133023010102
513321224213020
6550323553414
7103405363261
oct17637130422
95426086281
102122101010
11999963997
124b282b86a
1327a858693
14161ba05d8
15c6480a0a
hex7e7cb112

2122101010 has 32 divisors (see below), whose sum is σ = 3866314032. Its totient is φ = 838533120.

The previous prime is 2122100993. The next prime is 2122101017. The reversal of 2122101010 is 101012212.

It can be written as a sum of positive squares in 8 ways, for example, as 1837065321 + 285035689 = 42861^2 + 16883^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (2122101017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620064 + ... + 623476.

Almost surely, 22122101010 is an apocalyptic number.

2122101010 is a deficient number, since it is larger than the sum of its proper divisors (1744213022).

2122101010 is a wasteful number, since it uses less digits than its factorization.

2122101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4158.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2122101010 is about 46066.2675935440. The cubic root of 2122101010 is about 1285.0558924348.

Adding to 2122101010 its reverse (101012212), we get a palindrome (2223113222).

The spelling of 2122101010 in words is "two billion, one hundred twenty-two million, one hundred one thousand, ten".

Divisors: 1 2 5 10 97 194 485 641 970 1282 3205 3413 6410 6826 17065 34130 62177 124354 310885 331061 621770 662122 1655305 2187733 3310610 4375466 10938665 21877330 212210101 424420202 1061050505 2122101010