| Base | Representation |
|---|---|
| bin | 10001110001001111010… |
| … | …011000010010001111010 |
| 3 | 11022201212122011011111020 |
| 4 | 101301033103002101322 |
| 5 | 130001303340232302 |
| 6 | 2332544402243310 |
| 7 | 154136011053312 |
| oct | 21611723022172 |
| 9 | 4281778134436 |
| 10 | 1221101102202 |
| 11 | 430958813533 |
| 12 | 1787a8356536 |
| 13 | 8b1c313abb7 |
| 14 | 4315cb58442 |
| 15 | 21b6c458ebc |
| hex | 11c4f4c247a |
1221101102202 has 16 divisors (see below), whose sum is σ = 2456318982240. Its totient is φ = 404680904432.
The previous prime is 1221101102173. The next prime is 1221101102213. The reversal of 1221101102202 is 2022011011221.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588197952 + ... + 588200027.
It is an arithmetic number, because the mean of its divisors is an integer number (153519936390).
Almost surely, 21221101102202 is an apocalyptic number.
1221101102202 is an abundant number, since it is smaller than the sum of its proper divisors (1235217880038).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1221101102202 is a wasteful number, since it uses less digits than its factorization.
1221101102202 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1176398157.
The product of its (nonzero) digits is 32, while the sum is 15.
Adding to 1221101102202 its reverse (2022011011221), we get a palindrome (3243112113423).
The spelling of 1221101102202 in words is "one trillion, two hundred twenty-one billion, one hundred one million, one hundred two thousand, two hundred two".
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