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1012021122211 = 1123101391710111
BaseRepresentation
bin11101011101000010010…
…10001101010010100011
310120202012111021201001121
432232201022031102203
5113040104401402321
62052525512513111
7133054553414401
oct16564112152243
93522174251047
101012021122211
113602175a3a40
121441779ab797
13745829174c8
1436da6ba2471
151b4d1caa441
hexeba128d4a3

1012021122211 has 32 divisors (see below), whose sum is σ = 1163842338816. Its totient is φ = 870996720000.

The previous prime is 1012021122209. The next prime is 1012021122221. The reversal of 1012021122211 is 1122211202101.

It is not a de Polignac number, because 1012021122211 - 21 = 1012021122209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012021122221) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 100086046 + ... + 100096156.

It is an arithmetic number, because the mean of its divisors is an integer number (36370073088).

Almost surely, 21012021122211 is an apocalyptic number.

1012021122211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1012021122211 is a deficient number, since it is larger than the sum of its proper divisors (151821216605).

1012021122211 is a wasteful number, since it uses less digits than its factorization.

1012021122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14163.

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

Adding to 1012021122211 its reverse (1122211202101), we get a palindrome (2134232324312).

The spelling of 1012021122211 in words is "one trillion, twelve billion, twenty-one million, one hundred twenty-two thousand, two hundred eleven".

Divisors: 1 11 23 101 253 1111 2323 3917 10111 25553 43087 90091 111221 232553 395617 991001 1021211 2558083 4351787 9099191 11233321 23487853 39604787 100091101 258366383 435652657 910910101 4000083487 10020011111 44000918357 92001920201 1012021122211