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11211010001210 = 2531158322845577
BaseRepresentation
bin1010001100100100010001…
…0001001100100100111010
31110200202120120012101010102
42203021010101030210322
52432140122030014320
635502133352115402
72234653164456245
oct243110421144472
943622516171112
1011211010001210
113632620969a68
121310928695b62
1363426975cb36
142aa8899ac25c
151469564e6175
hexa324444c93a

11211010001210 has 32 divisors (see below), whose sum is σ = 20843939837952. Its totient is φ = 4337004147840.

The previous prime is 11211010001209. The next prime is 11211010001273. The reversal of 11211010001210 is 1210001011211.

It is a junction number, because it is equal to n+sod(n) for n = 11211010001191 and 11211010001200.

It is an unprimeable number.

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, 10932059 + ... + 11913518.

It is an arithmetic number, because the mean of its divisors is an integer number (651373119936).

Almost surely, 211211010001210 is an apocalyptic number.

11211010001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11211010001210 is a deficient number, since it is larger than the sum of its proper divisors (9632929836742).

11211010001210 is a wasteful number, since it uses less digits than its factorization.

11211010001210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22847198.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11211010001210 its reverse (1210001011211), we get a palindrome (12421011012421).

The spelling of 11211010001210 in words is "eleven trillion, two hundred eleven billion, ten million, one thousand, two hundred ten".

Divisors: 1 2 5 10 31 62 155 310 1583 3166 7915 15830 49073 98146 245365 490730 22845577 45691154 114227885 228455770 708212887 1416425774 3541064435 7082128870 36164548391 72329096782 180822741955 361645483910 1121101000121 2242202000242 5605505000605 11211010001210