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211211200002 = 231117917878043
BaseRepresentation
bin1100010010110100101…
…0110010011000000010
3202012011200010122200010
43010231022302120002
511430030031400002
6241010141005350
721155003402205
oct3045512623002
9665150118603
10211211200002
1181635241750
1234b26253856
1316bbcc2292a
14a31904b93c
15576283146c
hex312d2b2602

211211200002 has 32 divisors (see below), whose sum is σ = 463398900480. Its totient is φ = 63645829520.

The previous prime is 211211199949. The next prime is 211211200037. The reversal of 211211200002 is 200002112112.

It is a super-2 number, since 2×2112112000022 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8927208 + ... + 8950835.

It is an arithmetic number, because the mean of its divisors is an integer number (14481215640).

Almost surely, 2211211200002 is an apocalyptic number.

211211200002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211211200002 is an abundant number, since it is smaller than the sum of its proper divisors (252187700478).

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

211211200002 is a wasteful number, since it uses less digits than its factorization.

211211200002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17878238.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 211211200002 its reverse (200002112112), we get a palindrome (411213312114).

The spelling of 211211200002 in words is "two hundred eleven billion, two hundred eleven million, two hundred thousand, two".

Divisors: 1 2 3 6 11 22 33 66 179 358 537 1074 1969 3938 5907 11814 17878043 35756086 53634129 107268258 196658473 393316946 589975419 1179950838 3200169697 6400339394 9600509091 19201018182 35201866667 70403733334 105605600001 211211200002