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1212011210122 = 217234471520339
BaseRepresentation
bin10001101000110001011…
…111110110010110001010
311021212102010220210201121
4101220301133312112022
5124324144332210442
62324442410305454
7153364524206236
oct21506137662612
94255363823647
101212011210122
11428013805029
12176a9012828a
138a3a4b75b2b
14429398235c6
15217d9422967
hex11a317f658a

1212011210122 has 16 divisors (see below), whose sum is σ = 1925042345280. Its totient is φ = 570333515968.

The previous prime is 1212011210099. The next prime is 1212011210131. The reversal of 1212011210122 is 2210121102121.

It is a super-2 number, since 2×12120112101222 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212011210096 and 1212011210105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37029 + ... + 1557367.

It is an arithmetic number, because the mean of its divisors is an integer number (120315146580).

Almost surely, 21212011210122 is an apocalyptic number.

1212011210122 is a deficient number, since it is larger than the sum of its proper divisors (713031135158).

1212011210122 is a wasteful number, since it uses less digits than its factorization.

1212011210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543805.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1212011210122 its reverse (2210121102121), we get a palindrome (3422132312243).

The spelling of 1212011210122 in words is "one trillion, two hundred twelve billion, eleven million, two hundred ten thousand, one hundred twenty-two".

Divisors: 1 2 17 34 23447 46894 398599 797198 1520339 3040678 25845763 51691526 35647388533 71294777066 606005605061 1212011210122