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1102211220991 is a prime number
BaseRepresentation
bin10000000010100000111…
…010001000010111111111
310220100222222212102200111
4100002200322020113333
5121024312033032431
62202203203410451
7142426551536656
oct20024072102777
93810888772614
101102211220991
11395499555061
12159748383a27
137cc26c3816a
143b4c102619d
151da0eb877b1
hex100a0e885ff

1102211220991 has 2 divisors, whose sum is σ = 1102211220992. Its totient is φ = 1102211220990.

The previous prime is 1102211220961. The next prime is 1102211221079. The reversal of 1102211220991 is 1990221122011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1102211220991 - 25 = 1102211220959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1102211220961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551105610495 + 551105610496.

It is an arithmetic number, because the mean of its divisors is an integer number (551105610496).

Almost surely, 21102211220991 is an apocalyptic number.

1102211220991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102211220991 is an equidigital number, since it uses as much as digits as its factorization.

1102211220991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 1102211220991 in words is "one trillion, one hundred two billion, two hundred eleven million, two hundred twenty thousand, nine hundred ninety-one".