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1220222110101 = 3621765423951
BaseRepresentation
bin10001110000011010111…
…001111100100110010101
311022122121101011202000020
4101300122321330212111
5124443003330010401
62332321242335353
7154105145542161
oct21603271744625
94278541152006
101220222110101
1143054762a785
121785a1aba559
138b0b2cbb627
14430b8109ca1
1521b1a1cbd36
hex11c1ae7c995

1220222110101 has 8 divisors (see below), whose sum is σ = 1627224534144. Its totient is φ = 813350546400.

The previous prime is 1220222110091. The next prime is 1220222110117. The reversal of 1220222110101 is 1010112220221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1220222110101 - 25 = 1220222110069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220222110001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32693325 + ... + 32730626.

It is an arithmetic number, because the mean of its divisors is an integer number (203403066768).

Almost surely, 21220222110101 is an apocalyptic number.

It is an amenable number.

1220222110101 is a deficient number, since it is larger than the sum of its proper divisors (407002424043).

1220222110101 is an equidigital number, since it uses as much as digits as its factorization.

1220222110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65430171.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1220222110101 its reverse (1010112220221), we get a palindrome (2230334330322).

The spelling of 1220222110101 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, one hundred ten thousand, one hundred one".

Divisors: 1 3 6217 18651 65423951 196271853 406740703367 1220222110101