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211214001001 = 312934923509
BaseRepresentation
bin1100010010110101010…
…1011110001101101001
3202012011212101221220211
43010231111132031221
511430031241013001
6241010321021121
721155036246323
oct3045525361551
9665155357824
10211214001001
1181636885123
1234b271847a1
1316bc0693823
14a31957a613
155762bd6351
hex312d55e369

211214001001 has 12 divisors (see below), whose sum is σ = 218279770500. Its totient is φ = 204370089120.

The previous prime is 211214000957. The next prime is 211214001071. The reversal of 211214001001 is 100100412112.

It can be written as a sum of positive squares in 2 ways, for example, as 198029450025 + 13184550976 = 445005^2 + 114824^2 .

It is not a de Polignac number, because 211214001001 - 213 = 211213992809 is a prime.

It is a super-2 number, since 2×2112140010012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211214001071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8972635 + ... + 8996143.

It is an arithmetic number, because the mean of its divisors is an integer number (18189980875).

Almost surely, 2211214001001 is an apocalyptic number.

It is an amenable number.

211214001001 is a deficient number, since it is larger than the sum of its proper divisors (7065769499).

211214001001 is an equidigital number, since it uses as much as digits as its factorization.

211214001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32920 (or 32889 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211214001001 its reverse (100100412112), we get a palindrome (311314413113).

The spelling of 211214001001 in words is "two hundred eleven billion, two hundred fourteen million, one thousand, one".

Divisors: 1 31 961 9349 23509 289819 728779 8984389 22592149 219785641 6813354871 211214001001