Search a number
-
+
1212021121202 = 21995036599187
BaseRepresentation
bin10001101000110010000…
…101101010000010110010
311021212102211120100011122
4101220302011222002302
5124324204401334302
62324443402542242
7153365004355433
oct21506205520262
94255384510148
101212021121202
11428019364401
12176a93507982
138a3a6c36088
144293ac8348a
15217da22e3a2
hex11a3216a0b2

1212021121202 has 32 divisors (see below), whose sum is σ = 1833777792000. Its totient is φ = 600787989648.

The previous prime is 1212021121193. The next prime is 1212021121217. The reversal of 1212021121202 is 2021211202121.

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, 131923253 + ... + 131932439.

It is an arithmetic number, because the mean of its divisors is an integer number (57305556000).

Almost surely, 21212021121202 is an apocalyptic number.

1212021121202 is a deficient number, since it is larger than the sum of its proper divisors (621756670798).

1212021121202 is a wasteful number, since it uses less digits than its factorization.

1212021121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10550.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1212021121202 its reverse (2021211202121), we get a palindrome (3233232323323).

The spelling of 1212021121202 in words is "one trillion, two hundred twelve billion, twenty-one million, one hundred twenty-one thousand, two hundred two".

Divisors: 1 2 199 398 503 659 1006 1318 9187 18374 100097 131141 200194 262282 331477 662954 1828213 3656426 4621061 6054233 9242122 12108466 65963923 131927846 919591139 1204792367 1839182278 2409584734 3045279199 6090558398 606010560601 1212021121202