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1000212001210 = 25972334425521
BaseRepresentation
bin11101000111000010100…
…01111111000110111010
310112121201111100012110201
432203201101333012322
5112341413233014320
62043254022232414
7132156120506242
oct16434121770672
93477644305421
101000212001210
11356207665604
12141a20b8570a
1373420195546
14365a6670b22
151b04019170a
hexe8e147f1ba

1000212001210 has 32 divisors (see below), whose sum is σ = 1826749269072. Its totient is φ = 394260725760.

The previous prime is 1000212001181. The next prime is 1000212001213. The reversal of 1000212001210 is 121002120001.

It can be written as a sum of positive squares in 8 ways, for example, as 54029748249 + 946182252961 = 232443^2 + 972719^2 .

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 (1000212001213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1986751 + ... + 2438770.

Almost surely, 21000212001210 is an apocalyptic number.

1000212001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000212001210 is a deficient number, since it is larger than the sum of its proper divisors (826537267862).

1000212001210 is a wasteful number, since it uses less digits than its factorization.

1000212001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425858.

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

Adding to 1000212001210 its reverse (121002120001), we get a palindrome (1121214121211).

The spelling of 1000212001210 in words is "one trillion, two hundred twelve million, one thousand, two hundred ten".

Divisors: 1 2 5 10 97 194 233 466 485 970 1165 2330 22601 45202 113005 226010 4425521 8851042 22127605 44255210 429275537 858551074 1031146393 2062292786 2146377685 4292755370 5155731965 10311463930 100021200121 200042400242 500106000605 1000212001210