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1212102002210 = 251197113599063
BaseRepresentation
bin10001101000110110111…
…010001100011000100010
311021212122110202112001112
4101220312322030120202
5124324341103032320
62324455412303322
7153400006011221
oct21506672143042
94255573675045
101212102002210
1142805aa87510
12176ab6611b42
138a3ba914468
14429478d8cb8
15217e23a8ec5
hex11a36e8c622

1212102002210 has 32 divisors (see below), whose sum is σ = 2404664986752. Its totient is φ = 436220398080.

The previous prime is 1212102002191. The next prime is 1212102002227. The reversal of 1212102002210 is 122002012121.

It is a super-2 number, since 2×12121020022102 (a number of 25 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, 56788862 + ... + 56810201.

It is an arithmetic number, because the mean of its divisors is an integer number (75145780836).

Almost surely, 21212102002210 is an apocalyptic number.

1212102002210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212102002210 is a deficient number, since it is larger than the sum of its proper divisors (1192562984542).

1212102002210 is a wasteful number, since it uses less digits than its factorization.

1212102002210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113599178.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1212102002210 its reverse (122002012121), we get a palindrome (1334104014331).

The spelling of 1212102002210 in words is "one trillion, two hundred twelve billion, one hundred two million, two thousand, two hundred ten".

Divisors: 1 2 5 10 11 22 55 97 110 194 485 970 1067 2134 5335 10670 113599063 227198126 567995315 1135990630 1249589693 2499179386 6247948465 11019109111 12495896930 22038218222 55095545555 110191091110 121210200221 242420400442 606051001105 1212102002210